Note This behavior can occur on any version of Office (Office 2003, Office 2007 and Office 2010).
- When launching directly from a file, Office uses a windows mechanism (DDE) to determine which application to launch. DDE registers application types to extensions on first launch.
- When launching from inside an application, the application could use DDE or the File Type Associations that are set for that extension in Windows.
- Application Virtualization also registers file type associations for the application. If the application is launched via a mechanism that launches through Application Virtualization specifically, those file type associations could be selected as defined in the App-V package.
- Locally install the version of Office that you plan to use primarily.
- Virtualize additional versions of Office by using Application Virtualization (App-V).
- The recommended practice is to have a primary local version that has all the FTA’s by default and a virtual version that has all the FTAs removed and is called only through shortcuts.
If the virtual version of an application is running and a user clicks on a file with an associated extension, it may open in the virtual version of the application. When launching an application from file type associations, Windows will check for applications that support that File Type Association that are already running.
Article ID: 2605618 - Last Review: Aug 25, 2011 - Revision: 1