I want to make users login to my programs but do not want them to have to remember another password. I don't want them to have to logoff the current windows session either.

Example:

Worker A is logged into windows but Manager 1 needs to show User A a report that he does not have permission to bring up. So, using the same login and password that is used to log into windows Manager 1 logs into the program and pulls up the report while Worker A remains logged into the computer.

Anyone know how verify windows 200 users/passwords using VB.net?