Cannot Disconnect 'Disconnected' Network Drives

Archived from groups: microsoft.public.windowsxp.help_and_support (More info?)

First off, I'm a desktop/support person for my company and I'm hoping someone
could help me out with a problem regarding automatically assigned network
drives, and how to remove them.

I have a user with WinXPPro and has a couple of drives mapped to some of our
networks (B, P, S, X) and ones that are assigned to the hard drive and
optical drive (C and D). The problem is that all the other letters have been
automatically assigned as well, each one with a display name "Disconnected
Network Drive" If you open any of these auto assigned drives, it connects to
one of our network folders despite its disconnected label. The problem is
that I cannot disconnect the network drive. I've tried it in Windows (both
right clicking and Tools > Disconnect Network Drive...) as well as through
the dos prompt (the "net use" command doesn't display the drives
automatically assigned).

On my end, I've tried using a login script (Active Directory UC Home folder)
that forced a letter to be mapped to a certain location. So when she logs
in, that letter we've assigned is pointing in the correct direction.
Initially, this worked as only the letters that we've assigned appear. But
after a few minutes, each unassigned letter would automatically appear one by
one, ending when all available letters are used up.