When I log onto Windows 7 I see all of my mapped drives. When I go to load a program such as adobe reader and go to change the directory to load the application, I only see my C and D drives. I cannot see my mapped drives in the drop down. I have looked at this on several applications and it is the same situation on each. I have an XP machine next to the Windows 7 box and I do not have this issue, I can see my mapped drives fine.

Try this and see if that helps Mapped Drive Connection to Network Share May Be Lost http://support.microsoft.com/default.aspx?scid=kb;en-us;297684 Also what Antivirus solution is installed?

The regedit on HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters was the fix for this issue. Thanks for the help on this brain teaser.

Glad to hear you solve the issue and give us the update. Regards, MiyaThis posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.