Is it possible to login an account from a Windows Service?

Question

Suppose that you have an account which must always be running. (yes I know the answer is use a service, but at this time it's not possible - legacy stuff :)

that account has one or more critical applications which must always be running. if that account is unintentionally logged off, i'd like to have a service monitor it, and re-login the account.

Obviously the service would have know login/pwd of user - and it would be on the same machine.

Is there a way to do this ??

thanks for your help in advance, J_

Answer 1

Run your applications as service. There are some tools that can let you run applications as services.

Answer 2

You can monitor the active sessions with WTSEnumerateSessions.

For each enumerated session you can call: WTSQuerySessionInformation passing in WTSUserName to get the primary username of that session that is logged in.

You can then use LogonUserEx to log the user in.