Microsoft Resource Kits are typically released as-is and do not receive fixes but every once in a while you encounter a problem that prevents one from even using the tool at all and so the ABS Configuration Tool receives an update for two problems.

This is the Knowledge Base article that documents the problems and fixes along with the process to obtain the fix - http://support.microsoft.com/Default.aspx?kbid=954749

The resource kit can be found with our other tools and resources on Microsoft Technet here - http://technet.microsoft.com/en-us/office/bb676081.aspx

The description of the tool from the OCS Resource Kit Tools Readme -

ABS Configuration Tool is a graphical user interface application that enables administrators to configure AD attributes and WMI settings, related to ABS.

The primary scenarios for the tool are:

1. To enable administrators to map attributes in the AD to the attributes for Office Communicator.
2. To enable administrators to specify the list of attributes to be included in the ABS files.
3. To enable administrators to configure WMI settings and thereby all common tasks related to ABS files.