We just released the Live Communications Server 2005 Resource Kit to Microsoft.com.
It's available now from the Microsoft Download Center.
If you're using LCS2005 (and in some cases LCS2003, I'm told), it's worth checking out.
This release of the Microsoft Office Live Communications Server 2005 Resource Kit contains tools and documentation to simplify deployment, provide you with increased knowledge and best practices for Active Directory directory services integration, and improve your ability to manage the configuration and maintenance of the Live Communications Server 2005 technologies.
Specifically the LCS_EnableConfigureUsers script. The function GetUsersInGroup copied the GetUsersInDN function a little too closely, it uses objUser in the body of the loop For Each objMember...
BTW, what does error -1007200224 mean? It doesn't give a description, which doesn't help me debug it.