White paper: Compatibility Between the 32-bit and 64-bit Versions of Office 2010

There is a good white paper available that gives you invaluable information about 64-bit Office. Here are the download link, description, and table of contents.

Compatibility Between the 32-bit and 64-bit Versions of Office 2010

Summary: For customers working with large amounts of data, Microsoft Office 2010 is now available in a 64-bit version. This article discusses issues around the compatibility of the 32-bit version with the new 64-bit version and legacy 32-bit Office applications and their solutions. (12 Printed Pages)

Introducing the 32-bit and 64-bit Versions of Microsoft Office 2010
Comparing 32-Bit Systems to 64-Bit Systems
Introducing the VBA 7 Code Base
ActiveX Control and COM Add-in Compatibility
Application Programming Interface Compatibility
Using Conditional Compilation Attributes
Conclusion
Additional Resources

Office Blogs Comments

Comments: (2) Collapse

  • Is it or will it be possible to use Office 2010-64bit version besides older version in 32bit as, as a developer we always need several versions side-b-side

  • Cees, It won't be possible to have Office 2010 32- and 64-bit installed on the same machine. The Office installer won't allow it.

Comments

Comments: (loading) Collapse