Symantec Endpoint Protection 12.1 Outlook Email Plug-in fails to load for Microsoft Outlook (64-bit installation)
|Article:TECH177144|||||Created: 2011-12-16|||||Updated: 2012-02-09|||||Article URL http://www.symantec.com/docs/TECH177144|
Symantec Endpoint Protection (SEP) 12.1 is supported on a range of platforms, ranging from Windows XP (Service Pack 3) Home Edition 32-bit all the way through to Windows 7 64-bit Ultimate Edition. In SEP 11, certain components did not display full functionality on 64-bit platforms. However, SEP 12.1 is advertised as introducing full feature parity, yet the Outlook Email Tools plug-in does not load.
Microsoft Outlook 64-bit edition does not load the SEP Outlook Email Tools plug-in.
Microsoft Office 2010 is available in two variants: 64-bit and 32-bit. The default installation on both 32-bit and 64-bit platforms is the 32-bit version of Office 2010 (installed in WoW-compatibility mode on 64-bit operating systems). Therefore, the Office 2010 64-bit installation media, when run as a default install on a 64-bit operating system, will still install itself as a 32-bit application.
Microsoft have documented how to install Office 2010 as a 64-bit native application, but have not made this the default installation mode due to significant incompatibility issues with third-party plug-ins.
SEP 12.1 has introduced 64-bit and 32-bit drivers for all of the sub-components, and consequently can correctly advertise that all features and components are fully functional on both 32-bit and 64-bit Operating systems.
The Microsoft Outlook Email Plug-in remains a 32-bit module with full WoW (Windows on Windows) compatibility to enable it to run on 64-bit platforms. However, as a 32-bit module plugging into the MAPI interconnector for Microsoft Outlook, the Outlook Email plug-in will be directly impacted by the Microsoft 64-bit incompatibility issues. MAPI applications include stand-alone applications such as Microsoft Lync, Microsoft Office Communicator, and MFCMAPI, and service providers such as address book, store, and transport providers. For MAPI method and function calls to work in a MAPI application, the bitness of the MAPI application must be the same as the bitness of the MAPI subsystem on the computer on which the application is targeted to run. The bitness of the MAPI subsystem, in turn, is determined by and is always the same as the bitness of the installed version of Outlook. Consequently, the 64-bit version of Microsoft Outlook 2010 will not load the 32-bit MAPI module responsible for performing the Outlook Email Scanning within the SEP Product.
At this time, SEP 12.1 does not have a 64-bit native version of the MAPI "Email Tools" component. The current 32-bit module will interoperate normally with all versions of Microsoft Office up to and including Office 2010 32-bit. It will not be loaded by Office 2010 64-bit.
As the default installation of Office 2010 in any environment is the 32-bit version, the general recommendation from Symantec is to deploy the 32-bit version to avoid this incompatibility.
Article URL http://www.symantec.com/docs/TECH177144