Which OS printer driver am I supposed to install on 2008 32-bit server to share with Win 7 x64 clients?

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http://serverfault.com – Am I supposed to install Microsoft Windows Server 2008 x64 printer drivers on my 2008 32-bit server to support Windows 7 x64 clients while supporting Windows XP 32-bit clients? I have a Microsoft Windows Server 2008 Standard (not R2) 32-bit server with the Print Services role. I have mostly 32-bit XP clients that are able to print to the server's shared printers. We're getting Windows 7 Pro x64 workstations coming in and I want to share the same printers from the same server with those new workstations. The printers I'm most concerned about are HP LaserJet P4014ns. (HowTos)