Some applications are incompatible with a Click-to-Run installation of Outlook 2010

Original KB number:   981242

Symptoms

Some applications are incompatible with a Click-to-Run installation of Outlook 2010. For example, Windows Mobile Device Center or Exchange ActiveSync doesn't detect Outlook 2010 as installed.

More information

For more information about extensibility support matrix for the Outlook platform on Click-to-Run, see the following table.

Extensibility feature Click-to-Run on a 32-bit version of operating system without Outlook installed Click-to-Run on a 32-bit version of operating system with Microsoft Office Outlook 2007 or earlier versions installed Click-to-Run on a 32-bit version of operating system with Outlook 2010 installed Click-to-Run on a 64-bit version of operating system without Outlook installed Click-to-Run on a 64-bit version of operating system with 32-bit version of Outlook installed Click-to-Run on a 64-bit version of operating system with 64-bit version of Outlook installed
Outlook add-ins that use Outlook Object Model (OM) Supported Supported Supported Supported Supported Add-ins should work, with the understanding that older add-ins might break because of deprecation of command bars in Outlook 2010, not load or install because of setup issues, or other compatibility issues.
External applications that use Outlook OM only Not supported Not supported Not supported Not supported Not supported Not supported
Outlook add-ins that use Outlook OM and extended MAPI Not supported Not supported Not supported Not supported Not supported Not supported
External applications that use simple MAPI MAPISendMail Supported Supported Supported Supported Supported Not supported
External applications that use simple MAPI calls other than MAPISendMail Not supported Not supported Not supported Not supported Not supported Not supported
External applications that use extended MAPI Not supported Not supported Not supported Not supported Not supported Not supported
Mailto protocol handler Supported Supported Supported Supported Supported Supported