I think the only way to do this, without re-training users, would be to to write a custom credential provider (similar to the custom GINA's that were written for previous verions of Windows). Here is a good discussion on this topic:
http://msdn.microsoft.com/en-us/magazine/cc163489.aspx#S5 My thoughts are that this would be very expensive to develop and implement. Much more so than the cost of retraining users. YMMV Chris ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin