The current plan is for a 64-bit Office 12 for the AMD64 platform to ship "sometime after" the 32-bit Office 12. No Itanium version is planned, but that processor is primarily server-oriented ...

CPUs that process 64 bits as a single unit, compared to 8, 16 or 32. Today's desktop and laptop computers are mostly 64-bit machines; however, there are countless 32-bit, 16-bit and 8-bit ...

Microsoft Office apps such as Microsoft Word or Microsoft ... Note: Apps are not affected by this issue if they are 64-bit or 32-bit and NOT large address aware. There is a positive though.