you might want to try a couple of alternatives:

cusrmgr.exe from the Win2k resource kit can do this. Here's a link:

CUSRMGR SYNTAX

Check out the SetProperties Functions and the +s Property switch ...

2) ADSI can do this as well. All you'd need is a Windows 2000 workstation for that ... think there are even examples on da-board here ... let us know if you want to pursue this course of action ...

-Shawn