Getting the number of logged on users in Windows

Question

Hello!

Let's say I have 3 logged on users. I have a test application which I use to enumerate the WTS sessions on the local computer, using WTSEnumerateSessions. After that, I display the information contained in each of the returned WTS_SESSION_INFO structure.

On Windows XP, there are 3 structures displayed: Session 0, 1, and 3 (for each logged on user), with the name "Console" corresponding to the active user under which I run the test application, and an empty string as the name for the other sessions. For example, if I run the application under the first user, I get Session 0 (Console), Session 1 (), Session 2 ().

On Windows Vista, there are 5 structures displayed: Session 0 (Services), Session 1 (Console), Session 2 (), Session 3 (), Session 65536 (RDP-Tcp). On another computer with Windows Vista, I get only the first four sessions (without 65536, RDP-Tcp).

I would like to know if there is a way (better way) of finding out how many logged on users are on the local machine.

Thanks in advance!

Answer 1

http://www.codeproject.com/KB/system/logonsessions.aspx

Same information available on http://stackoverflow.com/questions/113592/getting-user-name-password-of-the-logged-in-user-in-windows

Try going through this articles:- ( this is for using ASP ...)

http://support.microsoft.com/default...b;EN-US;308157

http://www.c-sharpcorner.com/Code/20...cationWithAD.asp

Answer 2

I created a test application using LsaEnumerateLogonSessions and LsaGetLogonSessionData which displays the number of interactive logged on users. It works fine on Windows XP, but it displays 2 interactive looged on users on Windows Vista, even though I have only one user: the Administrator.

Can anyone tell me why this happens?

Thanks!