Posted by: kurtsh | November 10, 2014

INFO: 64-bit editions of Office 2013 (a.k.a. “why Microsoft recommends 32-bit Office for most users”)

imageThere’s a doc online that explains the benefits and drawbacks of deploying 64-bit Office, and why we recommend the 32-bit version of Office 2013 for most users.

As more and more personal computers run 64-bit versions of Windows, it’s tempting to deploy the 64-bit version of Office 2013 to match. One benefit is that 64-bit Office allows users to work with larger sets of Excel and Project data. But, there are compatibility drawbacks for those users because Office add-ins and solutions might not work. That’s why 32-bit Office 2013 is recommended for most users.

  • 32-bit Office is recommended for most users
  • 64-bit Office has advantages that benefit only specific kinds of users and workloads
  • Review the requirements for deploying Office 64-bit
  • 64-bit Office only works on 64-bit Windows
  • Running 32-bit and 64-bit versions of Office on the same computer isn’t supported
  • When you upgrade to Office 2013, the architecture versions must be the same for the old and new version
  • If you want to switch between 32-bit and 64-bit versions, you must uninstall and then re-install Office 2013
  • Some applications block 64-bit Office 2013 installations
  • Compatibility issues that you’ll have to consider if you deploy 64-bit Office
  • Some 32-bit features aren’t in 64-bit versions of Office
  • Graphics rendering might have performance implications
  • VBA code that uses Declare statements must be updated
  • ActiveX controls and COM add-ins that were written for 32-bit Office won’t work in a 64-bit process
  • Microsoft Access .mde, .ade, and .accde database files that have had their source code removed can’t be moved between 32-bit and 64-bit versions of Office 2013
  • MAPI applications that work with Outlook must be rebuilt
  • In-place OLE activation might not work if the version of Office 2013 doesn’t match registered applications
  • Telemetry Log can help you identify compatibility issues with 64-bit Office

For elaboration on each of the points above, please click the link below:


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