I work for a very large hospital and our library is having problems with unauthorized users logging into their PCs to access the internet. They do not want the users to have to log into the PC. Instead, they would like a screen-saver to determine if their login is valid or not. Currently, I have created the entire screen-saver app, but am still not able to figure out how to determine if the userid / password are valid in our NT domain. I am willing to do whatever it takes to get this functionality into the application (ActiveX, IIS, MTS, grannie's bloomers, whatever). I do not want to ask them to create and maintain 100+ student accounts & 200+ physician & nurse accounts.

Any ideas would be helpful.