RDP Miniport by Microsoft Corporation.
RDPCDD is a kernel device driver. In Windows XP it is starting right at Kernel initialization. If the RDPCDD fails to load or initialize, Windows XP start up proceeds without error messages, but information about the failure is being written into Event Log.
The RDPCDD service is using the RDPCDD.sys file that is located in the %WinDir%\System32\DRIVERS folder. If the file is changed, damaged or deleted, you can restore its original version from Windows XP installation media.