Re-authenticating NT signon and/or password through a VB application

I need to force a re-entry and validation of the Windows domain user ID/password via VB6.0.  My application utilizes a SQLServer 2000 DBMS.  I have Windows security enabled on SQLServer, and use domain-level user groups to control access to server objects, so it is a fairly secure setup.  I work for a financial institution, so security is way up there on their list of important things!

Unfortunately, I have been given an audit mandate to force a login upon entry into my system.  This will require either a reverification the domain user id/password, or creation of an external security table to force user validation upon entry into my system.  Theoretically, this should prevent someone else from sitting down at a machine that is already logged-in and opening applications they are not entitled to.  Ideally, I'd like to be able to use the domain iD/password so I can avoid having to maintain an external table, force encryption, track logins, produce reports, etc...

Any suggestions would be greatly appreciated.  I've done some looking around, but can't seem to find a simple solution.
kevintblackAsked:
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