The Version property returns the version of Commerce Server as an integer (2 for Commerce Server 2.0, and 3 for Commerce Server 3.0).
AdminSite.Version
The following example creates and initializes an AdminSite object for the Clocktower site, which is in the default Web site, then tests the version number of the site:
Set AdminSite = Server.CreateObject("Commerce.AdminSite")
Call AdminSite.Initialize("1", "Clocktower")
Call AdminSite.ReadDefaultProperties
If AdminSite.Version = 3 Then
REM Special processing for Commerce 3.0 site
End If
None.