I'm at my witt's end. I'm somewhat familiar with RDP and printing. Host and Remote devices must have same drivers. I've done this very successfully in past now I'm struggling with a x86 machine connecting to a x64 Win 7 OS. I've loaded the exact same x86 print driver on the new x64 Win7 OS but every time a x86 device with the x86 print driver hits the new x64 Win 7 (WITH the same x86 printer driver) I get a MS Event 1111- "printer driver HP 4100 PCL (just and example) is unknown". I know the RDP local resource for printers is working because I get the unwanted XPS added to the RDP session from the remote pc but not the printers I need. I'm using RDP from PC to PC there is no term server in the mix if that help you understand my environment a little better. Please any guidance out there?