Or one thing I've experience first hand. Install 64-bit printer drivers on the server, no worries. Got to load the 32-bit drivers up too, as the clients need these, fail. 16-bit installer to extract the 32-bit drivers. 16-bit apps don't run at all on a 64-bit server. Had to find a older system to extract the 16-bit InstallShield* self-extractor, and copy the 32-bit drivers up to the server manually. *this alone renders many 32-bit apps not 64-bit capable, even though the app itself has no troubles. You just can't install the thing. So add some $ for a installer reverse engineer and repack in a 32/64bit capable installer.