In Sitebuilder, a site template (hereafter called simply template) is an installable file that dictates the overall look and feel of a site. Later on, the site can be filled with any content, provided by Sitebuilder site owners. A site template is compiled from template source code - files that contain resources (stylesheet files, images, etc.) and instructions necessary for installing the template to an existing Sitebuilder instance. Source code of one or more templates can be compiled into template pack - a package that contains one or more templates. It is considered that a single template is also a template pack.
To create custom template packs, you need to install Sitebuilder SDK. It contains tools for compiling template packs and samples of template source code. Sitebuilder SDK is available at the following URL: http://swdn.swsoft.com/en/download/sdk/.
There are two versions of Sitebuilder templates: 3 and 4 (depending on the version of SDK being used). Sitebuilder templates of version 3 are applicable to Sitebuilder for Windows 3.2 and later. Sitebuilder templates of version 4 are supported by Sitebuilder for Windows starting from version 4.0.