Release Notes for Parallels Plesk Panel 11.0 for Microsoft Windows

What`s New History of Changes


  1. Introduction
  2. What's New
    1. Parallels Plesk Panel 11.0
    2. Parallels Customer and Business Manager 11.0
    3. Parallels Web Presence Builder 11.0
  3. Software Requirements and Prerequisites
  4. Supplied Components
  5. Supported Third-Party Components
  6. Earlier Versions Supported for Upgrade
  7. Notes on Installation, Upgrade, and Migration
    1. Known Problems and Limitations
  8. Known Problems and Limitations
  9. Contact Information

1. Introduction

Thank you for downloading Parallels Plesk Panel for Windows.

This file contains information that supplements the Parallels Plesk Panel documentation, such as requirements, information about new features, resolved bugs, known problems, and so on. This file was updated with the latest information available at the time of release.

This document contains the full list of new features, improvements, and problems resolved in the version 11.0. If you wish to view the changes introduced in each minor release of Panel 11, see Release Notes for Updates Issued for Parallels Plesk Panel 11 for Windows Systems

We highly recommend that you use the latest version of the Parallels Installer to upgrade to Panel 11.0 for Windows. Read more about the benefits in

To see the release notes for the previous version, Panel 10.4, click here.

2. What's New


[+] new feature

[-] bug resolved

[*] bug resolved and functionality improved

Parallels Plesk Panel 11.0

  1. [+]  Smooth cloning in virtual environments. Administrators can seamlessly scale their infrastructure by copying the same virtual machine with Panel as many times as they need in their virtual environments. Previously, this was problematic because Panel copies and the original had the same configuration, for example, the same IP address pool. Starting such a copy on a machine with a different IP address could make the Panel inoperable because its services were bound to the original IP address.

    Now the administrators can use special utilities to prepare Panel for safe cloning in virtual environments (GoDaddy cloud, Amazon cloud, KVM, Xen, and so on). Learn more about Panel cloning on Windows.

  2. [+]  Modern Look & Feel. The Panel 11 user interface features an updated, modern look that is organized and functions identically to the Panel 10 user interface, so hosters and end-users will have no trouble adapting. If the administrators decide to change the theme later, they can do it in Tools & Settings > Panel Branding. Read more about changing branding and themes.

  3. [+]  Better Security. Panel 11 has put significant efforts into improving security. Hosters and website owners concerned about security should upgrade to Panel 11 for enhanced protection. Among other improvements, your Panel users can find the following:

  4. [+]  Software Development Kit for writing extensions. Adding new functionality to Panel has never been so clear. Use the new SDK (the replacement of former Modules API) to learn how to extend Panel to meet your unique needs.

  5. [+] (Only for Windows) Instant configuration of WebMatrix. If a customer decides to use Microsoft WebMatrix for website development, they can instantly set up web publishing of code from their local environment directly to their customer account. For this, they should just download an XML file with settings and import it to WebMatrix. The download link is available in Websites & Domains > Advanced Operations > Web Deploy Publishing Settings.

    The settings are only available if Web Deploy is installed on the server and is running.

    Learn more about the WebMatrix support.

  6. [+] (Only for Windows) One-click removal of Panel. Administrators can remove Panel as any other program using the standard tools, namely, from Control Panel & Programs. For the complete instruction on how to remove programs in Microsoft Windows, read this article.

  7. [+] (Only for Windows) Removal of Panel components. If administrators no longer need a certain Panel component, they can remove it from Panel, in Tools & Settings > Updates and Upgrades > Add/Remove Components or by clicking the Add or Remove Components link on the dashboard. Learn more about managing Panel components.

  8. [+]  Enable more APS applications with better APS 1.2 compliance. Independent software vendors (ISVs) can rely on a smoother end-to-end experience for application deployment with the following new supported aspects:

  9. [+]  Power User view by default. The majority of our customers install Panel for corporate and business use, so we have rearranged the list of options in the view selector to follow this trend. The view selector is the tool that helps you select the most convenient Panel view on the first Panel run.

  10. [+]  Activate Panel by an activation code. Administrators can activate Panel either by uploading an XML key as they did before or by using the new way - providing an activation key. The new option is available in Tools & Settings > License Management > Install Key. Learn more about Panel licensing.

  11. [+]  Transparent activation of commercial APS apps. Now it is possible to purchase a Panel license in a bundle with APS app licenses. When administrators activate Panel using such combined keys and then install the corresponding commercial apps, the system transparently activates the apps without any actions from the administrator. The pool of used and unused app license keys is available in Tools & Settings > License Management > Additional License Keys. Learn more about license bundles.

  12. [+]  (Only for Windows) Install Web Deploy as a component. Administrators can install Web Deploy during the Parallels Panel installation. This automates the component installation process and reduces the number of steps administrators should perform to set up Web Deploy. Read more about installing Web Deploy.

  13. [+]  We added support for the Korean language.

  14. [*]  The PHP version is updated to 5.3.13.

  15. [*]  The Atmail version is updated to 1.0.5.

  16. [*]  New documentation structure. Panel documentation was reorganized to ease its use through shortening the list of documents and clearly shaping each document for specific audiences. For example, the Administrator's Guide now includes the Control Panel User's Guide, so administrators have the complete description of the Panel GUI in one document.

  17. [*]  Integration with the Parallels Panel page on Facebook. Administrators can Like the Parallels Panel page on Facebook from within the control panel itself. This feature can be hidden by modifying the panel.ini file. Learn more about managing the button visibility.

  18. [*]  Product rating widget. Administrators can rate Parallels Panel and provide their feedback after one month since their first login. This feature can be hidden by modifying the panel.ini file. Learn more about managing the widget visibility.

  19. [*]  Administrators can hide all promos in Panel altogether (including promos on the Mail tab). Learn how to hide the promos here.

  20. [*]  (Only for Windows) Links to Parallels Panel in WebMatrix. If a customer decides to use WebMatrix to write code and publish it to their customer account, they should provide WebMatrix with publishing settings. The tool uses these settings to connect to the customer account. Customers can provide the publishing settings either manually or by importing their profile to WebMatrix. Parallels Panel automatically generates such profile files for each customer account. If a customer prefers to import the profile, WebMatrix will additionally show the link in various places of the customer's control panel. This provides customers with an easy way to launch Parallels Panel in a browser. Read more about configuring web publishing with WebMatrix.

  21. [*]  (Only for Windows) Include passwords in the files that keep WebMatrix publishing settings. To quickly connect WebMatrix to a customer account, Panel generates an XML file called profile. Customers can import the profile to WebMatrix instead of manually entering connection settings. Such files contain the password to a customer account. Administrators may wish to improve the security of the system and prevent stealing the passwords by instructing Parallels Panel to exclude the passwords from the XML files. The customers will then have to enter the passwords directly in WebMatrix. Read how to exclude the passwords from the profiles.

  22. [*]  (Only for Windows) Extended PVC template is not supported. We discontinued the support for Parallels Panel for Windows Extended PVC template ("PanelExt").

  23. [*]  Panel users can see additional troubleshooting information and proposed solutions when backing up their data.

  24. [*]  Customers can see and install only APS applications that meet all the hosting requirements. For example, an app is displayed in the Applications list if a customer has all necessary web server modules and scripting support.

  25. [*]  Customers were informed that their password was not strong enough if they used the £ symbol in their passwords.

  26. [*]  Changes in service plans now apply to existing subscriptions faster than before.

  27. [*]  Panel shows a hint about the maximum size of a backup file that it can process.

  28. [*]  Panel security is improved by excluding a vulnerable component Stunnel.

  29. [*]  Panel users can apply the {WEBSPACEROOT} placeholder in custom PHP settings.

  30. [*]  Administrators get more troubleshooting information when calling command-line utilities.

  31. [*]  For security considerations, we removed the ability of administrators to log in to Panel through the Virtuozzo Power Panel. It was possible by entering the admin username and the Panel administrator's password if the offline management was enabled in the container. Plesk Panel remains available at https://:8443 and Panel administrator's credentials while the Virtuozzo Power Panel is available at https://:4643 and the system administrator's credentials. Additionally, Panel no longer creates the system user admin in the Administrators group. After upgrading to Panel 11.0, this user is also removed.

  32. [*]  Customers can change passwords of their users' mailboxes in the Control Panel.

  33. [*]  Administrators can set a custom name for an APS application's database during the application installation.

  34. [*]  Panel users can set the {WEBSPACEROOT}/:{TMP}/ value to the open_basedir PHP parameter. This eliminates the problem when scripts that require files located outside the site's root directory (additional libraries, configuration files, and so on) do not work. The open-basedir parameter in the server-wide PHP settings now uses this value by default.

    Before Now
    Users can set one of the following predefined values to open_basedir:
    • Default (the defaut value in server-wide php.ini is {DOCROOT}/:/tmp/)
    • {DOCROOT}/:/tmp/
    Users can set one of the following predefined values to open_basedir:
    • Default* (the defaut value in server-wide php.ini is {WEBSPACEROOT}/:{TMP}/)
    • {DOCROOT}/:/{TMP}/ - limits scripts to open files only in the root directory of a website.
    • {WEBSPACEROOT}/:{TMP}/ - limits scripts to open files only in the root directory of a webspace. (Recommended)
    • None - removes any restrictions. (Not recommended as potentially insecure)
    * Note that during an upgrade to Panel 11, default values in server-wide php.ini are automatically updated. Additional directives remain intact.
  35. [*]  By default, administrators perform all hosting operations directly in the Server Administration Panel.

    Before Now
    If Service provider view was selected during Panel installation, the Open hosting operations in Server Administration Panel option is turned off in Tools & Settings > Interface Management.
    If the administrator performs an upgrade from Panel version earlier than 10.0, the option is automatically turned on.
    If Service provider view was selected during Panel installation, the Open hosting operations in Server Administration Panel option is turned on.
    If the administrator performs an upgrade from Panel version earlier than 10.0, the option is automatically turned on.
  36. [*]  Panel preserves user-defined list sorting in new user sessions.

    Before Now
    If a user applies some custom sorting to any list in Panel, this sorting will work only in the current user session. Panel will use the default list sorting in the next user session. If a user applies some custom sorting to any list in Panel, this sorting will work not only in the current user session but in all following sessions.
  37. [*]  If the administrator changes hosting settings of a certain website, Panel will apply the changes in the background without suspending the site.

    Before Now
    When the administrator changes hosting settings of a certain website (for example, enables the support for ASP.NET), Panel suspends the site until all changes are not applied in IIS. For large sites, this may lead to significant site downtime. When the administrator changes hosting settings of a certain website, Panel does not suspend the site. Downtime is insignificant even for large sites.
  38. [*]  The default validity period of all newly created service plans is now Unlimited.

    Before Now
    When the administrator creates a service plan, plan's validity period is set to 1 Year by default. When the administrator creates a service plan, plan's validity period is set to Unlimited by default.
  39. [*] Panel got a number of security improvements.

  40. [-]  We discontinued the experimental ability to automatically upgrade to the late adopters tier (only updates can be applied automatically).

  41. [-]  We revised the Update and Upgrade Settings page for better usability.

  42. [-]  The MySQL ODBC driver was updated to 5.1.11.

  43. [-]  Parallels Installer did not apply proxy settings specified by administrators.

  44. [-]  Panel did not add new IP addresses into SmarterMail 8 configuration afer re-reading them from the system.

  45. [-]  Panel users could not create database users whose names started with a digit.

  46. [-]  Customers could see the "Secure your website" tool even if SSL support was unavailable for a subscription.

  47. [-]  Panel halted synchronization of the DNS template with zones if an error occurred during synchronization of a zone.

  48. [-]  Administrator failed to log in to Panel using Safari for Mac OS.

  49. [-]  Administrators could not update the IP address of a subdomain by running a command-line call similar to the following: "/usr/local/psa/bin/domain --update c1.dom -ip".

  50. [-]  Panel users could experience delays with receiving emails because MailEnable could suddenly stop processing mail. The only workaround to bring the service to proper operating was to reload Panel.

  51. [*]  We do not ship "PanelExt" Parallels Virtuozzo Containers template (*.efd) for Panel for Windows. This template previously included Kaspersky Antivirus and Tomcat components for Panel which now can be installed through Parallels Installer. Upgrade from previous Panel versions deployed through this template is performed correctly.

  52. [-] Panel sent customers notifications about reaching disk space and traffic limits even if they increased the limits by purchasing add-ons.

  53. [-] FTP users referred to the previous virtual host location after chaning it by the reconfigurator script.

  54. [-]  Panel was shipped the ProperoRDP client that was incompatible with Microsoft Windows Server 2008 and Microsoft Windows Server 2008 R2.

  55. [-]  Customers had to mark messages in the Spam directory as read in order to start training SpamAssassin on these messages.

  56. [-]  Administrators could not operate Panel if MailEnable was switched off.

  57. [-]  Panel command-line utilities considered phone numbers containing periods such as +1.1111111111 invalid.

  58. [-]  Customers having shared folders on Windows Panel servers could not attach those folders to Windows 7 operating systems with the error "The folder you entered does not appear to be valid. Please choose another."

  59. [-]  Additional administrators with the file sharing permission could not create e-mail links to files with the error "User not found".

  60. [-]  Customers could not create databases if they had zero MySQL and non-zero MS SQL databases allowed.

  61. [-]  After changing the vhosts location with the reconfigurator utility, administrators could not create new subscriptions with errors like “Error: Unable to create system user: Unable to create directory (C:\Inetpub\vhosts\domain.tld): (3) The system cannot find the path specified”.

  62. [-]  Administrators could not access the IIS Application Pool (Tools & Settings > IIS Application Pool) with the error "Unable to manage IIS application pool because all domains are using single shared IIS application pool." if they selected Always place all domains in the shared application pool mode in the global settings of the pool.

  63. [-]  Resellers with limited IIS Application Pools could not create new subscriptions with errors like “An error occurred during domain creation: Unable to change resource limits. Unable to allocate the required amount of resources (Unlimited IIS application pools). Only 10 IIS application pools are available.“

  64. [-]  After upgrading to version 10.4, Panel added extra records from DNS template to DNS zones of domains with custom records.

  65. [-] Administrators could not to specify a network mask except "/24", "/16" and "/8" in DNS transfer restrictions, in Tools & Settings > DNS Template Settings > DNS Template Settings.

  66. [-] Administrators could see invalid symbols in the user interface messages when they used the nl-NL locale.

  67. [-] Administrators could not see domain names in the Domains list if the names were used for standard forwarding and the forwarding URL did not include the http:// prefix.

  68. [-] Panel provided administrators with wrong statistics regarding the usage of databases by website applications in Tools & Settings > Database Servers.

  69. [-] Administrators could experience problems with running PHP scripts after renaming a domain because Panel did not change the "open_basedir" property after the renaming.

  70. [-] Panel did not send all selected parameters to the script under a custom button if the button was configured to open the script inside Panel (not in a separate window).

  71. [-] Administrators could not manage their permissions in Simple mode via command line.

  72. [-] Additional domains had the SSL feature enabled (even if the administrator disabled SSL in the service plan for a given subscription) if they were created after disabling SSL support.

  73. [-]  Customers could not download backup files that exceeded 4GB.

  74. [-]  Customers experienced problems with running PHP scripts because Panel incorrectly set the open_basedir parameter for domain names started with a digit (

  75. [-]  Parallels Installer incorrectly detected the version of the MS SQL server if the software was upgraded from 2005 to 2008 manually.

  76. [-]  Administrators could upgrade from Parallels Small Business Panel to Parallel Plesk Panel 10.4 though such upgrade was not supported.

  77. [-]  Panel failed to restore backups that contained customer or reseller accounts with periods (“.”) in their names. The following error occurred: “pmm utility 'Conflict Resolver' raised an exception. Error code is: 1. See pmmcli.log to find out detailed information on this”.

  78. [-]  The Health Monitor on the Panel dashboard did not show anything if the Panel server had a network adapter with non-English characters in its name. The following error message appeared in %plesk_dir%\admin\logs\HealthMonitoring.log : “Failed to create RRD database "C:\Program Files (x86)\Parallels\Plesk\var\health\data\localhost\cpu-0.rrd":ERROR: Unrecognized consolidation function M”.

  79. [-]  The Health Monitor service heavily loaded CPU on Windows 2008 / 2008 R2 operating systems.

  80. [-]  After upgrading to version 10.4, the value of the DUMP_D parameter in the psa.conf configuration file was reset to default.

  81. [-]  After upgrading from version 10.4 to version 11.0, some A (AAAA) DNS records for subdomains disappeared from their parent domain’s DNS zone.

  82. [-]  After upgrading from Panel 9.x, administrators could not update a customer’s contact information with the error “User with such e-mail already exists in the system” if there was a domain and a domain level user with the same e-mail as this customer.

  83. [-]  Administrator could not refresh the hardware configuration in the Health Monitor by clicking Detect Hardware Changes. The following error occurred: “File does not exist or is not executable: C:\ Program Files (x86)\Parallels\Plesk\/admin/bin/health-monitor-reconfigure”.

  84. [-]  Customers were not authenticated in the SugarCRM APS application if they opened it using the link on the Control Panel Home page.

  85. [-]  Administrators failed to create the full Panel backup because the Tomcat properties were backed up incorrectly.

  86. [-]  Panel did not change a domain’s DNS zone after creating a subdomain in this domain. Due to this, the slave DNS server did not update the zone and stored incorrect entries.

  87. [-]  Panel mistakenly showed MB instead of KB as units of the mailbox size at the mailbox properties page in the Control Panel.

  88. [-]  Panel applied changes in mail server settings to the first domain in each subscription only.

  89. [-]  Administrators could not set the spam filter sensitivity to 6.25 with the error “6.25 doesn’t appear to be a float”.

  90. [-]  Panel failed to show the domains list if it contained a domain with frame forwarding.

  91. [-]  Panel failed to switch domains with long names (45 or more characters) to dedicated application pool in IIS with the error “websrvmng failed: External component has thrown an exception.”

  92. [-]  Panel failed to switch domains with long names (45 or more characters) to dedicated application pool in IIS with the error “websrvmng failed: External component has thrown an exception.”

  93. [-]  After upgrading to version 10.4, Panel counted subdomains as domains reducing the number of available domains left.

  94. [-]  Panel did not create A records for subdomains’ name servers (glue records) in parent domains’ DNS zones.

  95. [-]  Administrator could not add new IP addresses to Panels with SmarterMail 8 installed with errors like “Unknown IP Address:”.

  96. [-]  Panel failed to restore domain-level virtual host configuration files vhost.conf .

  97. [-]  Administrators could not uninstall APS applications from Panels with MS SQL as database providers with errors like “Internal error: Source: Microsoft OLE DB Provider for SQL Server. Description: The column 'id' was specified multiple times for 'inner_tbl'”.

  98. [-]  Panel migration via HTTPS transport failed with errors like “Unable to download file 'migration.result' from remote host using 'Https' transport.”

  99. [-]  After reconfiguring IIS virtual directories with the websrvmng utility, the SQL webadmin tool became inoperable.

  100. [-]  Customers with multiple subscriptions could not see the fact that one of their subscriptions is suspended by administrator. When they tried to switch to such subscriptions, their browsers showed errors like “The page isn't redirecting properly. Firefox has detected that the server is redirecting the request for this address in a way that will never complete.” or started infinitely redirecting.

  101. [-]  Administrators could not sync non-hosting service plans with subscriptions to them. The following error occurred “Some subscriptions were not synced with the plan. They were marked as 'Unsynced' in the subscriptions list. To retry syncing, go to a subscription overview page and click the Sync button.”

  102. [-]  Customers could not access PHP web applications using their standard URLs like if these customers’ subscriptions included PHP support through FastCGI.

  103. [-]  Migration from Panel 9.2 to Panel 10.4 completed with the error “An error occurred while updating domain settings: Total mailboxes quota is not supported by the mail server” if the mail server of the destination Panel did not support total mailboxes quota.

  104. [-]  Customers could not unpack ZIP archives larger than 7 MB using the Panel file manager with the error “Error: An error occurred when extracting the archive files: filemng unpack-archive failed”.

  105. [-]  Administrators failed to migrate to Panel 10.4 via Migration Manager XML API with the error “PHP Fatal error: Class 'Db_Table_Broker_ServiceNode' not found in /usr/local/psa/admin/plib/Db/Table/Broker.php”.

  106. [-]  After upgrading to version 10.4, DNS records related to subdomains in the parent domain DNS zone were lost if administrators or customers added these records manually.

  107. [-]  Customers received the errors like the following when they tried to add a MIME type that was already registered: “Cannot add duplicate collection entry of type 'mimeMap' with unique key attribute 'fileExtension' set to '.docx'”.

  108. [-]  Administrators could not run Parallels Installer in browsers without Java plugins installed.

  109. [-]  When restoring subscriptions with databases, customers could not specify a remote database server on which they want to restore their database.

  110. [-]  Site visitors could not visit websites hosted on IPv6 addresses if the firewall was switched on with the default configuration.

  111. [-]  Panel mistakenly considered certain IP addresses as invalid.

  112. [-]  When installing APS applications that create their own databases, Panel ignored the property Add username and underscore to the beginning of database user names if it was switched on.

  113. [-]  The MS SQL server webadmin tool was switched off after Panel installation. The following error appeared in the Windows event viewer: “Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'PageHandlerFactory-Integrated'”.

  114. [-]  Customers could break the DNS server while configuring DNS settings of their subscriptions.

  115. [-]  Customers could get permissions to read and modify any files on the disk C: of the Panel server.

  116. [-]  Administrators could not add the permissions Management of access to the server over Remote Desktop and Access to the server over Remote Desktop to existing subscriptions.

  117. [-]  Customers failed to retrieve their passwords by clicking Forgot your password on the log in page after upgrading from Plesk 8.x. The following error occurred: “Identification failed: invalid username or e-mail address specified. Please try again.”

  118. [-]  Administrators did not see the end-user license agreement after upgrade, if the Panel language was not English.

  119. [-]  In some cases, Panel failed to perform upgrade by transfer from the version 9.3 with the error: "Error: Unable to initialize agent on remote host. Could not load file or assembly 'psarepository, Version=1.0.4326.19253, Culture=neutral, PublicKeyToken=null' or one of its dependencies. This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. (Exception from HRESULT: 0x800736B1)".

  120. [-]  Sometimes, Panel users saw blank pages instead of Panel GUI pages.

  121. [-]  PHP configuration defined in Panel could be ignored by some PHP versions due to wrong syntax in PHP configuration files.

  122. [-]  Administrators could not activate the auto-reply function for a mailbox using the API RPC call. Panel returned a positive responce, though the function was not activated.

  123. [-]  After a Panel user created a backup split into volumes, Panel displayed that the repository contains not only volumes but a single backup file as well. In fact, only volumes were created.

  124. [-]  Customers failed to install any APS app written in Perl. Panel raised the error: "Unsupported script processor perl".

  125. [-]  Sometimes, Panel failed to start after the server reboot with the error: "The system cannot find the file specified. (Error code 2) at Unable to connect to pipe \\.\pipe\psapipe". Administrators could start Panel by manually starting the Plesk Control Panel service.

  126. [-]  Administrators failed to install Panel using the mirror created with the mirrorctl tool if the plesk.inf3 file contained the caution tag. Parallels Installer raised the error: "Segmentation fault".

  127. [-]  Auxiliary users in customer subscriptions were inactive after upgrade from Panel 9.x or earlier.

  128. [-]  A reseller failed to restore a domain backup if another reseller had the permission Manage users and roles.

  129. [-]  Panel DNS server could crash if the administrator added records with the zero length rdata field.

  130. [-]  After upgrade to Panel 11, administrators were still notified about updates available for the 10.4 version. The notifications were displayed on the Home page.

  131. [-]  The Administrator's Guide contained the incorrect instruction on how to renew an expired subscription.

  132. [-]  Administrators could not transfer a singe subscription from Panel 10 to Panel 11. Panel raised the error: "Line 48 error: Element 'template-item': This element is not expected".

  133. [-]  Panel mistakenly showed error messages after migrating subscriptions from cPanel.

  134. [-]  Panel did not check the strength of the administrator's password provided during the initial configuration.

  135. [-] The Apache configuration could be broken if the administrator added an IP address like Besides, such addresses were shown incorrectly in the Server Administration Panel.

  136. [-] Customers could not restore backups if these backups contained only mail content and settings.

  137. [-] MySQL could raise multiple errors "Error while sending QUERY packet" during the execution of the daily maintenance script.

  138. [-] Administrators could not clone Panel with the cloning.exe utility. Panel raised an error like: "Error: Data error (cyclic redundancy check). (Error code 23) at BCryptDecrypt()".

  139. [-]  Panel always used the %plesk_dir%\PrivateTemp\ directory for storing backup temporary files during the backup download regardless of the PSA Config\Config\DumpTempDir value in the Windows registry. Panel users got the error "No space left on device" when downloading their backups if there was not enough space on the disk used by %plesk_dir%\PrivateTemp\.

  140. [-]  Panel users saw wrongly encoded messages on the password retrieval page if the Panel language was set to Russian.

  141. [-]  Administrators were unable to simultaneously run multiple restoration processes of the same backup file using the pleskrestore utility.

  142. [-]  Chained certificates bundles are concatenated to the main certificate in nginx config.

  143. [-]  PHP error_reporting per vhosts did not work because of the wrong value.

  144. [-]  Cusomers could not change subdomains' directories.

  145. [-]  Administrators could not add plan items provided by the Google AdWords integration module through API-RPC.

  146. [-]  The link to documentation on the administrator's password changing page was broken.

Parallels Customer and Business Manager 11.0

  1. [+]  Pay-as-you-go hosting. Administrators and resellers can create hosting plans that let subscribers consume more resources than initially provided and additionally pay for extra resources. Learn more about the pay-as-you-go hosting.

  2. [+]  Selling domain names and SSL certificates from Customer & Business Manager in Panel. Customers can order domain names and SSL certificates from their providers’ online stores through the Control Panel. Learn more about selling domain names and SSL certificates.

  3. [+]  Promoting plans with affiliate programs. These programs are available to customers with hosting plan subscriptions. Administrators and resellers can involve such customers in promoting their plans: customers distribute links to their providers’ online stores and earn commissions for each sign-up under their links. Learn more about affiliate programs.

  4. [+]  Improved task management. We reworked the tasks (former events) management page to improve its usability and increased the task manager performance. Learn more about task management.

  5. [*]  Now administrators can define both the activation date (the date when a service was provided and billing was started) and the next renewal date (the date when a subscription must be renewed the next time and when the nearest invoice should be issued) while creating a subscription through the GUI.

  6. [*]  The PayPal PayFlow Pro gateway supports recurring payments.

  7. [*]  Administrators and resellers can adjust the format of invoice numbers. Schet-factura numbers are customizable as well. Learn how to change the invoices and schet-facturas formats.

  8. [*]  (Only for Windows) Customer & Business Manager shows action log during the installation and upgrade processes.

  9. [*]  Administrators see a warning if their domain registration plans do not have transfer fees specified but are sold in online stores that support domain names transfer.

  10. [*]  Business Manager validates values that administrators enter into the fields URL of Business Manager interface for customers and Default online store URL on the Branding page.

  11. [*]  Schet-factura template is updated to conform to the current regulations in Russia. If you customized your schet-factura template before, be sure to back it up before upgrading Business Manager. Otherwise, the new template will replace your current one.

  12. [*]  If a customer pays the first invoice for a subscription in some days after the system issues this invoice, the administrator can return the money paid for these days to the customer’s credits.

    Before Now
    For example, if a customer subscribes to a hosting plan on the 1st of June and pays the invoice on the 6th of June, Business Manager issues the next invoice on the 1st of July. So the customer uses the subscription only 25 days for the price of the whole month. In the same example, the administrator can configure the system to return the payment for the period between issuing the invoice (the 1st of June) and the subscription creation in Panel (the 6th of June), making the customer pay only for the period when their subscription actually exists (25 days).
  13. [*]  Due to changes in the eWAY payment processing system, customers should enter their CVV2 code for each transaction through the corresponding gateway. Therefore, the gateway no longer supports automatic payments.

    Before Now
    eWAY payment gateway can perform payments automatically in the unattended mode. eWAY payment gateway requires customers to enter CVV2 code for each payment.
  14. [*]  Business Manager uses more reliable domain name availabiltiy checker for RU, РФ, and other Russian domain zones.

    Before Now
    Business Manager uses as the default domain name availabiltiy checker. Business Manager uses as the default domain name availabiltiy checker. If you still experience issues with Russian domain zones, define the server manually in All Settings > Supported TLDs.
  15. [*]  The OpenSRS registrar module now supports registration of international domain names and selling of the WHOIS privacy service.

  16. [*]  The OpenSRS registrar module now supports registration of domain names in the Australian zones,,,,,,, and

  17. [*]  The integration utility now validates the provided value of the hostname parameter.

  18. [-]  The billing cycle of a subscription could be changed after importing it to Business Manager if one or more billing cycles were removed from the plan before importing the subscription.

  19. [-]  The system did not save last 4 digits of a credit card under a billing account if administrators saved the billing account details without making changes.

  20. [-]  Additional administrators failed to log in to Business Manager or restore their passwords after upgrade.

  21. [-]  SSL certificates were renewed bypassing renewal policies without payments received.

  22. [-]  Subscriptions imported from Panel were not invoiced since the moment of importing. Read more about fixing this issue in knowledge base article

  23. [-]  Administrators could not view error reports in All Settings < Error Reports with the error "Out of memory".

  24. [-]  Business Manager failed to sync service plans with Panels if these plans were created using Plesk 8.x/9.x templates. The following error occurred: "Request is invalid. Error in line 10: Element 'overuse': [facet 'enumeration'] The value '' is not an element of the set {'block', 'normal', 'notify', 'not_suspend', 'not_suspend_notify'}. Error in line 10: Element 'overuse': '' is not a valid value of the local atomic type."

  25. [-]  The URL of the web interface for customers and the default online store URL on the All Settings < Branding page had incorrect values by default.

  26. [-]  Customers saw incorrect subscription price when completing orders in online stores if Business Manager used monthly billing mode.

  27. [-]  Registration of domain names in the .eu zone at the eNom registrar failed with the error "Missing or invalid required parameter eu_whoispolicy".

  28. [-]  Administrators could not restart completed tasks related to domain name registration.

  29. [-]  Administrators failed to add a new payment gateway with the error “Unable to parse URL”.

  30. [-]  Administrators did not receive an error message if a domain registration at the RuCenter registrar failed due to invalid credentials specified in the corresponding plugin settings.

  31. [-]  Administrators failed to edit non-hosting subscriptions settings with the error “SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'domain_id' cannot be null” if these subscription had no domain names attached.

  32. [-]  Customers did not see restrictions on the value of the Domain description field when they registered a domain name at the RuCenter registrar. In turn, Business Manager did not validate the value and the domain registration might fail.

  33. [-]  Upgrading to version 10.4 failed with the error “MSI: Error! Critical action 'Upgrading SSO...' has been failed: Execution of PHP script 'sso\scripts\upgrade.php' returned error code = 1. Output: FATAL ERROR: Can not open log file '/var/log/sso/sso.log' (CWD is C:\Program Files (x86)\Parallels\Plesk\sso\scripts)”.

  34. [-]  Administrators could not install Business Manager with the error “SQLSTATE[HY000]: General error: 1 no such column: vendor_id”.

  35. [-]  Administrators could not install Business Manager with the error “Command "C:\Program Files (x86)\Parallels\Plesk\admin\bin\sqlite3.exe" "C:\Program Files (x86)\Parallels\Plesk\admin\db\sso.db" < "C:\Program Files (x86)\Parallels\Plesk\sso\schema\db-schema-1.sql" failed with code 35.”

  36. [-]  After upgrading to version 10.4, languages of localized e-mail templates were reset to English.

  37. [-]  If the fraud protection policy supposed checking new accounts with FraudGuardian and the FraudGuardian module had invalid credentials specified, Business Manager automatically approved all new orders.

  38. [-]  Administrators failed to edit a domain name registration plan with the error “TLD not found, tld_id=NULL” if they remove a TDL sold in this plan from the system.

  39. [-]  Customers who signed up to plans with discounts received welcome e-mails that contained plan prices without discounts applied.

  40. [-]  Administrators and customers saw incorrect prices of subscriptions with taxes or discounts applied.

  41. [-]  Upgrading to version 10.4 failed with the error “Wrong panel administrator's credentials were provided. Correct the credentials on the panel settings page.”

  42. [-]  Upgrading to version 10.4 failed with the error “SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'default-reseller' for key 2”.

  43. [-]  Validation of the Discovery credit cards numbers was incorrect.

  44. [-]  The domain name lookup widget did not work if the port of the corresponding online store was 8880.

  45. [-]  Administrators could not sell service plans with dedicated IPs if the corresponding panels groups contained Panels without free dedicated addresses.

  46. [-]  Business Manager did not update the expiration date of a Panel subscription when the corresponding subscription in Business Manager was updated.

  47. [-]  Administrators could not see archived subscriptions.

  48. [-]  Administrators could not view lists of a customer’s Active, Pending and Total domains using the links on the customer’s profile page.

  49. [-]  Administrators could not create hosting plans with custom webmail applications due to the absence of the corresponding plan setting.

  50. [-]  Business Manager created multiple accounts for a single customer in the RuCenter system: one account for each domain name.

  51. [-]  Administrators included in groups with limited permissions could change their group to any other group, for example, root.

  52. [-]  Administrators and customers could not specify ZIP codes that include any characters except digits.

  53. [-]  Administrators failed to install Business Manager with the error “MSI: Error! Critical action 'Creating SSO database...' has been failed” if Business Manager was installed and removed from the server before.

  54. [-]  After upgrading a hosting subscription, customers saw the "Prorated X Fee" serivce subscription in the UI. Now, Business Manager hides this subscription from customers.

  55. [-]  Customers failed to pay invoices in the Control Panel: After clicking on Pay this invoice or Pay all outstanding invoices, Panel displayed a blank screen.

  56. [-]  Business Manager showed all domain names in the CA zone as available for purchase regardless of their actual availability.

  57. [-]  Customers saw the confusing warning “Unable to pay the invoice online. Contact your service provider to find out the ways to pay this invoice” when trying to pay an invoice if only off-site payment gateways (like PayPal) were configured on the server.

  58. [-]  Business Manager failed to provision hosting subscriptions to Parallels Plesk Panel if the minimum password strength was set to Strong or Very Strong in this Panel. Business Manager logged the following error on the Tasks page: "Your password is not complex enough. According to the server policy, the minimal password strength is Strong...".

  59. [-]  Business Manager administrators could not get details on failed tasks through the links in the To-Do items because the links were broken.

  60. [-]  Online store visitors could not see the list of ordered add-ons in the order details page if they selected both hosting add-ons and add-ons for a domain name registration plan.

  61. [-]  Business Manager incorrectly calculated daily prices for resources with allowed overuse during the first subscription billing cycle.

  62. [-]  Customers could not see their traffic usage details during the first month of using a subscription.

  63. [-]  Business Manager continued sending notifications about the credit card expiration after the corresponding billing account was removed.

  64. [-]  Customers from the United States did not have the county field in the contact form in online stores.

Parallels Web Presence Builder 11.0

  1. [+]  Website Dashboard. Website Dashboard is a one-stop information hub where a website administrator can see the current state of their website. The Dashboard provides one-point access to such vital information as visitor statistics (based on Google Analytics), Comments (based on Disqus) and E-Shop orders (based on Ecwid). Learn more about the Dashboard.

  2. [+]  Columns. Customers can add modules via drag-and-drop not only one under another, but also next to each other, automatically creating columns. Up to three columns can be created. Learn more about changing website layout.

  3. [+]  Flexible layout. Customers can change the elasticity of various website areas independently of each other – for example, making header elastic while keeping fixed width of the remaining content. It is also possible to make sidebars start next to the header, as opposed to under it. Learn more about changing website layout.

  4. [+]  Round corners. Customers can make corners round for any given website area (header, footer, sidebars, content). Learn more about changing styles of website elements.

  5. [+]  The Logo module. The website logo is now a separate module that can be added outside the Banner module. Learn more about using the logo.

  6. [+] The Feedback link. Users can leave their feedback about the product and request improvements using the Feedback link located under the Help menu. This feature is based on the UserVoice service.

    Learn more about this and other changes.
  7. [+] Extended language support for third-party components. Users can choose almost any language for their website in the editor's Website Settings, and this language will be used by all third-party components that support it.

  8. [+] Right-To-Left languages support. Users can choose a Right-To-Left language for their website, and their website will be fully RTL-compliant. Note that this ability does not affect website editor itself, only websites.

  9. [+] Option to synchronize sidebar and content height. Users can enable synchronization of sidebar and content heights to ensure that both sidebars and content always reach the footer. This functionality is available on the Design tab.

  10. [+] Website name and slogan outline. Users can make website name and slogan stand out by enabling outline effect in corresponding properties.

  11. [*]  Site-wide concept changes. Header and Footer are now site-wide areas, so every module put in them is displayed on the whole website. Sidebars and Сontent have a page-specific area in the center and site-wide areas at the top and the bottom.

  12. [*]  The Design tab. Layout and Style tabs were combined into one Design tab to improve usability.

  13. [*]  Banner image positioning improvements. It is now possible to put your banner image module in the website content, diversifying the design of your website.

  14. [*]  New color schemes. More than 20 new color schemes were added. Color schemes now have human-readable names and are more fun to read.

  15. [*]  Improved generation of website designs. Websites are now generated with color schemes that suit website banner images. Website generation also makes use of various new features added in this version.

  16. [*]  Improved design of the website topic selection screen. The topic selection screen was redesigned to make it more focused and to make the Search function more visible. The website name and website topic language options were moved to the Prefill Your Website screen.

  17. [*]  Image Gallery paging. The Image Gallery module has customizable paging, making life easier for the owners of huge galleries and their visitors.

  18. [*]  Mobile websites. Websites are now optimized for viewing on smartphones and tablets.

  19. [*]  Hiding the SiteBuilder 4.5 import feature. Administrators can hide the SiteBuilder 4.5 import feature to make it unavailable from the GUI. Learn more about it.

  20. [*]  Making modules unavailable in the editor. Administrators can prevent customers from using certain modules in the editor. Modules can be hidden for the whole installation, not per-site. Learn more about it.

  21. [*]  Prohibiting users from removing their sites. Administrators can prevent customers from deleting their sites from the editor by removing the Remove Site button. Learn more about it.

  22. [*]  WPB now displays proper and detailed error message when opened in unsupported browsers.

  23. [*]  Shortened sharing links from YouTube ( can now be used in the Embedded Video modules.

  24. [-]  The users of Google Chrome can now successfully print pages from published websites.

  25. [-]  Videos embedded from YouTube via embedding code are no longer displayed over Image Gallery when located on the same page.

  26. [-]  The order of images on published websites is now the same as in the editor.

  27. [-]  It is now possible to successfully publish websites containing pages with the title "0".

  28. [-]  The Contact Form module's "captcha" is now working correctly for all newly created websites.

  29. [-]  Empty titles in blog posts are not collapsed anymore, so users will have easier time clicking on them to provide a new title.

  30. [-]  Resolved the issue with lack of "e-mail" text in some website topics that affected SEO.

  31. [-]  Resolved the issue that made it difficult to drag and drop a module between two other modules.

  32. [-]  Resolved the issue with site's layout displayed incorrectly in the editor after design modification, unless the editor window was reloaded.

  33. [-]  Resolved the issue with some editor pages not fitting entirely the screens of monitors with low vertical resolution.

  34. [-]  Resolved the issue with notification mail not sent after website visitors submit Contact Form.

  35. [-]  Resolved the issue with notification mail being sent from unknown address if the E-Mail field was removed and then added to Contact Form.

  36. [-]  Resolved the issue with Contact Form not supporting internationalized e-mail addresses.

  37. [-]  Resolved the issue with Disqus module not working with Swedish localization.

  38. [-]  Resolved the issue with image order in Image Gallery being randomly changed after publishing website.

  39. [-]  Resolved the issue with incorrect symbols present in Hosting Provider topic in French.

  40. [-]  Resolved the issue with Ecwid online stores not working properly with SSL connections.

  41. [-] Panel users could not publish sites in Web Presence Builder if the sites included images with paths to them longer than 256 characters.

3. Software Requirements and Prerequisites

Parallels Plesk Panel 11.0 for Microsoft Windows can run on the following operating systems:

The Windows Server 2003 is no longer supported by Panel, we recommend that you use later operating system versions considering our lifecycle policy.

The list above includes the following designations:

Before installing Parallels Plesk Panel on Windows Server 2008, you need to add the Web Server role.

A static IP address should be configured in the operating system before installing Parallels Plesk Panel for Windows.

Parallels Plesk Panel for Windows can be installed only on NTFS partition.

In order for your server to support Server Side Includes (SSI), Active Server Pages (ASP), Adobe ColdFusion, and Microsoft FrontPage Server Extensions, you need to install these components yourself.

Windows Installer 4.5 is required for Microsoft SQL Server 2008 installation. If it is not installed in the system, you can download it from the Microsoft official website.

If you plan to use Microsoft SQL Server support in Parallels Plesk Panel for Windows, the SQL Server should be installed and configured to use standard or mixed security mode. If Microsoft SQL Server is not installed, you can select it to be installed with Parallels Plesk Panel for Windows and configured with administrator name "sa" and a random password.

IMPORTANT: We strongly recommend that you install Parallels Plesk Panel for Microsoft Windows on a clean server; specifically, only the aforementioned operating system components should be installed.

4. Supplied Components

Parallels Plesk Panel 11.0 for Microsoft Windows distribution packages include the following components:

5. Supported Third-Party Components

This is a contracted list of supported third-party components, it does not include the components supplied with the Panel distribution, as they were already mentioned as distributed and supported.

Web servers

  1. Microsoft Internet Information Services (IIS) 7, 7.5, 8

Mail servers

  1. MailEnable Standard / Professional / Enterprise 5.10 - 7.06
  2. SmarterMail 6.8 - 11.0 (Please check Known Problems and Limitations part)
  3. IceWarp Mail Server 10.0 - 10.4
  4. CommuniGate Pro 5.2.6 - 5.2.15

Webmail tools

  1. MailEnable Standard / Professional / Enterprise Web Client
  2. SmarterMail Web Client
  3. IceWarp (Merak) Mail Server Web Client
  4. CommuniGate Pro Web Client

Spam filtering tools

  1. IceWarp (Merak) Mail Server Anti-Spam

Antivirus tools

  1. SmarterMail ClamAV Anti-Virus
  2. SmarterMail CommTouch Anti-Virus
  3. IceWarp (Merak) Mail Server Anti-Virus

DNS servers

  1. Microsoft DNS Server
  2. Simple DNS Plus 5.2.x

FTP servers

  1. Microsoft FTP Server

Web statistics

  1. SmarterStats 5.0 - 7.7

Web scripting

  1. Apache Tomcat 5.5.4
  2. Perl v5.10 built for MSWin32-x86-multi-thread
  3. PHP 4.4.9
  4. PHP 5.2.17
  5. PHP 5.3.21
  6. PHP 5.4.11
  7. Python
  8. ASP 6.0.3790.0
  9. ASP.NET 1.1 - 4.5
  10. MIVA Empresa 5.06
  11. Adobe ColdFusion 8.x(x86), 9.x(x86/x64)
  12. Microsoft FrontPage

Database servers

  1. Microsoft SQL Server 2005 - 2012
  2. MySQL 4.1.22 - 5.5 (5.x for remote database servers)

6. Earlier Versions Supported for Upgrade

Panel 11.0 supports upgrade from the following earlier versions:

7. Notes on Installation, Upgrade, and Migration

We recommend that you read information about the product installation, upgrade, or migration before you start deploying Parallels Plesk Panel. This information, including detailed instructions, can be found in the Installation, Upgrade, and Migration Guide located at".

Parallels Installer and PVC Templates downloads are available at

Parallels Plesk Panel Knowledge Base can be accessed at

Known Problems and Limitations

8. Other Known Problems and Limitations

9. Contact Information

Parallels IP Holdings GmbH
Vordergasse 59
CH Schaffhausen
Phone: +41 526 320 411
Fax: +41 526 722 010

Global Headquarters
500 SW 39th Street, Suite 200
Renton, WA 98057
Phone: +1 (425) 282 6400
Fax: +1 (425) 282 6445

EMEA Sales Headquarters
Willy-Brandt-Platz 3
81829 Munich, DE
Phone: +49 (89) 450 80 86 0
Fax:+49 (89) 450 80 86 0

APAC Sales Headquarters
3 Anson Road, #36-01
Springleaf Tower, 079909
Phone: +65 6645 32 90


For billing information, send e-mail to
For purchasing information, send e-mail to
For technical support, use our Online Support Form.
To report problems with Parallels Panel software, send e-mail to
For information on career opportunities with Parallels, send e-mail to
For press contact information, send e-mail to
For information about becoming a partner, send e-mail to
For information on translating Parallels Panel into your language, send e-mail to
For general product information, send e-mail to

Copyright © 1999-2012. Parallels IP Holdings GmbH and its affiliates. All rights reserved.

This product is protected by United States and international copyright laws. The product's underlying technology, patents, and trademarks are listed at

Microsoft, Windows, Windows Server, Windows NT, Windows Vista, and MS-DOS are registered trademarks of Microsoft Corporation.

All other marks and names mentioned herein may be trademarks of their respective owners.