Run a program as a different user

I have a VB program that does some things like adding & managing users, editing file/directory permissions, etc. My problem is that in order for the user to run the command to create a user, they need to have Admin rights (or at least create user rights) on the server they run it on. I don’t want that. I’ve seen ASP components before that allow you to specify a username/password that the program runs as, so, say, a normal user could run the program but the command would execute as though they were logged on as Administrator.

Does anyone know how to do this in Visual Basic?

–Aaron