By default, Remote Desktop is not installed in Windows 2000 and earlier systems. To use Remote Desktop in these systems, you must manually add the Remote Desktop. In the “orttools”directory of the Windows XP system, you can find a program named msmsrdpcli.exe, which is actually the Remote Desktop Connection host. After you copy the program to a system without a remote desktop and run it, You can automatically install the Remote Desktop Connection Program in the system. The installation process is very simple. Click "Next" continuously. After the installation is complete, click "Start> program> attachment> communication> Remote Desktop Connection" to log on to the remote computer. Remote Desktop supports multiple users Windows XP does not support simultaneous logon of multiple users to the Remote Desktop. When other users remotely log on to Windows XP, the users currently logged on to the host will automatically exit. However, Windows XP SP2 provides the allow connection session concurrency function, which allows multiple users to log on simultaneously through remote desktop. However, this feature is disabled by default, you must modify the Registry to enable this function. Open the Registry Editor, expand the branch "HKEY_LOCAL_MACHINESystem CurrentControlSetControlTerminal ServerLicensing Core", go to the right window, create a subkey of DWORD type, and name the key "EnableConcurrentSessions ", set the key value to "1" to enable multi-user logon.