The client software used to connect to an XP Professional system with Remote Desktop enabled is called Remote Desktop Connection, and is installed by default on both Windows XP Home and Professional systems. The software can be started from the Run command by specifying its executable name (mstsc.exe), or from the shortcut found under Start > All Programs > Accessories > Communications. The Remote Desktop Connection window that will open is shown here.
If you’re running a client operating system other than XP Home or Professional and need to connect to an XP system running Remote Desktop, all is not lost. Remote Desktop Connection software can be downloaded from Microsoft for free, and runs on everything from Windows 95 through to Windows 2000. Obtain the latest version online at http://www.microsoft.com/windowsxp/pro/downloads/rdclientdl.asp.