Looking the progress of this thread and where we have been going with it.. I still like krabourn's answer with NTNAME. However, it does not appear to look for a secondary login. That is if the user is logged in on secondary workstation or Terminal Server session. Who else outside of IT, would be logged in multiple times, right? I still think NETBIOS is the "magic" key here as going to the PDC, BDC or the Forest model under Windows 2000+ would not only be costly in code but execution time too. Now, that I have gone off the deep-end, I have probably totally lost the concept of what is going on here. :P

If I get a moment or two today, I will look at the LDAP thread you pointed out.

Thanks again,

- Kent