I have windows server 2003 with active directory and my users running on windows xp pro and I would like to use remote desktop without to log them out when I login with my account in other words I would use the PC as same time the user using it both of us can working. I know it's working on windows server 2003 Any advice would be appreciated Thanks
Upgrade them to a better operating system. Multi user capability was introduced AFTER xp, and still only one user is allowed for a non-server at the same time.
Cannot be done, you can get access to the same desktop using VNC but that will not be practical for simultaneous use, only for troubleshooting, etc.