I just setup two of our folks in finance with new Windows 7 64-bit systems; they use QB 2009 multi-user, it didn't complain. The file and database server is on a Server 2008 machine. Haven't had ...

Switch to Multi-User Mode Begin by verifying that the version of Quickbooks that you are using is a desktop version, as these all support multi-user mode.

The update includes a single fix for Intuit QuickBooks users looking to run in multi-user mode.