When you try to to install x64 printer driver on 32bit server you may receive “selected driver must be installed remotely” error.
To solve this go to your x64 machine.
run and type \\32bit machine servername
In the list of shares open printers folder – in windows 7 or 2008 press on view remote printers

Right click on empty place and select server properties.
Navigate to Drivers and press on Add.
Uncheck the x86 check box and select x64 one.

After installation completes you can use the x64driver from your 32bit machine
Please note however that both x86 and x64 drivers must have the exact same name! “HP LaserJet 4200PCL 5″ and “HP LaserJet 4200PCL 5″ only if they have the same name, they will appear automatically in additional drivers under your printer’s sharing properties.