Want the Remote Desktop Connection 6.1 client for Windows XP but can’t update to Service Pack 3 or Windows Vista? No need to hack files from SP3, just grab the update from here:
Update for Windows XP (KB952155)
Install this update to use new Terminal Services features on a computer that is running Windows XP Service Pack 2 connecting to computers that are running either Windows Vista or Windows Server 2008 operating systems.
There’s a MUI pack available too. The knowledge base article for this update should be available soon, hopefully. Unfortunately there doesn’t appear to be an update available for Windows Server 2003.