How can I determine whether Microsoft Office is 32-bit or 64-bit for deploying the correct Mailsafe toolbar version?

Updated: 06/18/2015
Article #: 2


If you have installed Office 2010 including Microsoft Outlook 2010, Outlook sets a registry key named Bitness of type REG_SZ on the computer on which it is installed. The Bitness registry key indicates whether the Outlook 2010 installation is 32-bit or 64-bit. This may be useful to administrators who are interested in auditing computers to determine the installed versions of Office 2010 in their organization.

Registry path: HKEY_LOCAL_MACHINE\Software\Microsoft\Office\14.0\Outlook

Registry key: Bitness

Value: either x86 or x64







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