Parallels Plesk Panel 9.2.1 for Windows Release Notes


  1. Introduction
  2. Installation Instructions
    1. Before Installation
    2. Software Requirements
    3. Installation Steps
    4. Completing Installation
  3. Upgrade Instructions
  4. Supplied Components
  5. What's New
    1. Parallels Plesk Panel 9.2.1
  6. Supported 3rd party components
  7. Known Problems and Limitations
  8. Contact Information

1. Introduction

Thank you for downloading this release of Parallels Plesk Panel for Windows. This file contains information that supplements the Parallels Plesk Panel for Windows documentation such as requirements, information on new features, corrected bugs, known problems, and so on. This file was updated with the latest information available at release time.

2. Installation Instructions

We strongly recommend that you refer to the product installation instructions prior to upgrading/installing and operating Parallels Plesk Panel. The installation guide for Parallels Plesk Panel can be accessed at, along with the rest of the user documentation. Parallels Plesk Panel Knowledge Base can be accessed at

2.1. Before Installation

Before starting the installation process we strongly recommend that you create a full system backup of the entire server.

Internet Information Services (IIS) should be preinstalled with World Wide Web (WWW) Service support.

2.2. Software Requirements

Parallels Plesk Panel 9.2.1 for Windows requires one of the following OS installed on your computer:

A static IP address should be configured in OS prior to Parallels Plesk Panel for Windows installation.

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

In order for your server to support ASP.NET 1.1, FrontPage 2002 Server Extensions, Miva, File Transfer Protocol (FTP) Service, Server Side Includes (SSI) and Active Server Pages (ASP), you need to install these components manually.

In order for your server to support domain performance configuring, you need to enable QoS Packet Scheduler service.

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

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

2.3. Installation Steps

  1. Log in as "Administrator" or another user with Administrator's privileges.
  2. Change your working directory to the directory where the Parallels Plesk Panel for Windows distribution resides.
  3. Run SetupPlesk.exe or plesk_9.2.1_buildYYMMDD.HH.exe (where YYMMDD.HH is the actual build date).
  4. Follow the on-screen instructions.
  5. In some cases when the installation is finished, reboot confirmation will be requested.
  6. After the reboot Parallels Plesk Panel will be started automatically.

2.4. Completing Installation

In order to finish the initial configuration of Parallels Plesk Panel, you need to login to Parallels Plesk Panel on your host at or https://IP-address:8443/

The default username is "admin" and the default password is "setup". The password is case sensitive. For security reasons the password has to be changed upon initial login.

3. Upgrade Instructions

IMPORTANT: Make sure you upgrade all installed components when upgrading to Parallels Plesk Panel 9.2.1. This is required to avoid conflicts caused by outdated components.

IMPORTANT: If you are upgrading Parallels Plesk Panel on a intensively used hardware node, it is strongly recommended to use the following PVC parameters for the upgrade:

vprvmem (virtual memory) - 700
numproc (number of processes) - 100

After the upgrade is finished, these parameters should be set to their old values.

If you have Plesk version earlier than 8.1.x installed on your machine, you need to upgrade it to Plesk 7.6.1 first, migrating all data, upgrade it to Plesk 8.1, and then run the Parallels Plesk Panel 9.2.1 installer. Refer to Plesk 8.1 Release Notes for additional information if you want to upgrade your Sitebuilder delivered with Plesk 7.6.1.

If your machine has Plesk 8.1.x, 8.2.x, 8.3.x, 8.4.x or 8.6.x installed, you will be prompted to upgrade existing Plesk installation to Parallels Plesk Panel 9.2.1 after running the installer.

Parallels Plesk Panel 9.2.1 for Windows includes Sitebuilder 4.5 in the distribution package, but your Sitebuilder 2.x or 3.x installation will not be upgraded automatically. If you want to upgrade your Sitebuilder installation, add the following key to the command line of EXE installer when installing Parallels Plesk Panel 9.2.1: WSB_UPGRADE=force

If you have used SiteBuilder 2.0.5 with earlier versions of Plesk, you can migrate web sites created in SiteBuilder 2.0.5 to SiteBuilder 4.5 after you upgrade your Plesk to Parallels Plesk Panel 9.2.1.

To successfully migrate web sites created in SiteBuilder 2.0.5 to SiteBuilder 4.5:

  1. Install SiteBuilder 4.5:
  2. Run sitebuilder.exe utility located in the folder where Parallels Plesk Panel is installed with the following parameters:

4. Supplied Components

Parallels Plesk Panel 9.2.1 for Windows distribution package ships the following components:

5. What's New

5.1. Parallels Plesk Panel 9.2.1

  1. [+] Migration Manager - New Migration Manager feature allows you to transfer your data from other Parallels Plesk Panel installations.

  2. [-] Mailbox quota set incorrectly via API-RPC bug is fixed.

  3. [-] Backup timing out when large backup file is being uploaded to FTP bug is fixed.

  4. [-] Mailbox not accessible through POP3 on some mail servers after new password was set for the mail account. bug is fixed.

  5. [-] Inability to properly back up IDN domains that contain autoresponder attachments bug is fixed.

  6. [-] Backup failing with errors related to 'php_isapi' parameter in domain template bug is fixed.

  7. [-] Incorrect backup file size reported (much bigger than the actual file size) bug is fixed.

  8. [-] Backup failing with "Could not parse status disabled by value '32'" error bug is fixed.

  9. [-] Backup file content not being properly restored due to incorrectly applied restore conflicts resolution policy bug is fixed.

  10. [-] Client-related information not shown in custom button's query string even when it is required bug is fixed.

  11. [-] Red color of traffic indicator on a domain bug is fixed.

  12. [-] Inability to retrieve ASP.NET settings for IDN domains bug is fixed.

  13. [-] Database users not being restored properly during the restoration of a domain that already exists in the system. bug is fixed.

  14. [-] Missing link to the description of event handler variables in documentation bug is fixed.

  15. [-] Errors in unattended installation script provided in the Installation Guide bug is fixed.

  16. [-] 'Number of entries per page' option not working in the list of virtual directories bug is fixed.

  17. [-] Backup Manager incorrectly reporting warnings as errors when used via CLI bug is fixed.

  18. [-] Inability to backup domains that use SmarterStats or Urchin bug is fixed.

  19. [-] Inability to remove exclusive IP addresses from client and reseller template IP pools, where these IPs are still displayed as shared bug is fixed.

  20. [-] Inability to make an application from the Application Vault available to all users bug is fixed.

  21. [-] Windows server Temp folder not cleared after a successful backup on remote FTP bug is fixed.

  22. [-] Overuse policy cannot be changed if limits are already exceeded bug is fixed.

  23. [-] Updating Parallels Plesk Panel license key via GUI hangs Parallels Plesk Panel under some circumstances bug is fixed.

  24. [-] Backed up content of web users' websites is corrupted when backup file is converted to Parallels Plesk Panel 9 compatible format bug is fixed.

  25. [-] Incorrect placement of several mail-related messages in migration.result log file bug is fixed.

  26. [*] Mail accounts backup speed improvement - Mail accounts are backed up much faster now.

  27. [*] Web applications installation on Win2K8 speed improvement - Web applications are installed much faster on Windows 2008 Server.

  28. [*] DNS Settings for a domain on domain Home page - DNS Settings button for a domain is now located on domain's Home page.

  29. [*] Configuring Parallels Plesk Panel to work behind NAT - Description of configuring Parallels Plesk Panel to work behind routers and NAT was added to Administrator's Guide.

  30. [*] Bugfixes and improvements - A number of issues reported by the customers were fixed, multiple other bugfixes and improvements were made.


[+] new feature

[-] bug fixed or removed

[*] bug fixed and improvement made

6. Supported third-party components

Mail servers

  1. MailEnable Standard 1.986
  2. MailEnable Professional 3.52
  3. MailEnable Enterprise 3.52
  4. Merak 9.3.2
  5. SmarterMail 5.1
  6. MDaemon 9.6.5
  7. hMailServer 4.4.1
  8. CommuniGate Pro 5.2.6


  1. DrWeb
  2. Kaspersky AV
  3. ClamWin 0.93
  4. Merak Antivirus

DNS servers:

  1. Microsoft DNS 5.2
  2. BIND DNS Server 9.4.2
  3. SimpleDNS Plus 5.1

FTP servers:

  1. Microsoft FTP 6.0
  2. Microsoft FTP 7.0
  3. Gene6 FTP Server 3.10
  4. Serv-U FTP Server 6.4

Web Statistics:

  1. Webalizer V2.01-10-RB02
  2. AWStats 6.6
  3. SmarterStats 3.3
  4. Urchin 5.7

Web Scripting:

  1. ASP 6.0.3790.0
  2. ASP.NET 1.1.4322
  3. ASP.NET 2.0.50727 (.Net Framework 2.0/3.0/3.5)
  4. Miva Empresa 5.0.6
  5. Perl 5.8.8
  6. PHP 4.4.7
  7. PHP 5.2.6
  8. Python
  9. SSI 6.0.3790.0
  10. Apache Tomcat 5.5.4
  11. ColdFusion 5.0
  12. ColdFusion MX 6.1
  13. ColdFusion MX 7.0
  14. ColdFusion 8.0 x86
  15. Microsoft FrontPage

Web Administration Tools:

  1. phpMyAdmin 2.11.6
  2. ASP.NET Enterprise Manager 0.1.3
  3. myLittleAdmin 2000 2.7.r126, 2005 3.2

Database servers:

  1. Microsoft SQL Server 2000
  2. Microsoft SQL Server 2005
  3. Microsoft SQL Server 2008
  4. MySQL 5.0.45

Web Mail Solutions:

  1. Horde IMP H3 (4.1.6)
  2. Atmail Webmail 5.5
  3. MailEnable Web Client
  4. IceWarp Web Mail
  5. SmarterMail Web Client
  6. CommuniGate Pro Web Client

Spam Filter:

  1. SpamAssassin 3.2.3
  2. Merak Spamfilter
  3. SmarterMail Spamfilter


  1. stunnel 4.07

7. Known Problems and Limitations

8. Contact Information

Parallels Headquarters
13755 Sunrise Valley Drive Suite 600
Herndon, VA 20171 USA
Phone: +1.703.815.5670, Fax: +1.703.815.5675


For billing information, email
For purchasing or partnering information, email
For technical support, use our Online Support Form.
To report problems with Parallels Plesk Panel software, email
For information on career opportunities with Parallels, email
For press contact information, email
For information about becoming a Partner, email
For information on translating Parallels Plesk Panel into your language, email
For general product information, email

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Patented hosting technology protected by U.S.Patents 7,099,948; 7,076,633.
Patents pending in the U.S.