Article ID: 2540922 - View products that this article applies to.
When opening a Microsoft Office document in the local client from an Office Web Application, such as the Microsoft Office Word Online the document does not open. You receive an error message that resembles the following:
Microsoft <Office Application> Web App
To open this document (or presentation or spreadsheet), your computer must be running a version of Microsoft <Office Application> and a browser that supports opening files directly from the Office Online.
This issue occurs because the SharePoint OpenDocuments Class (OWSSUPP.DLL) Internet Explorer Add-in is the wrong version due to having multiple versions of Office on the same workstation. To check the version open Internet Explorer when the error is showing, go to Tools, Manage Add-ons. In Manage Add-ons click on SharePoint OpenDocuments Class and notice the version is any version other than 14.0.
To resolve this issue you must disable SharePoint Support in any previous version of Office installed on the machine and then repair Office 2010.
Windows XP Solution:
Windows Vista/Windows 7 Solution:
If you are using 64-bit Browser you could be running into the experience outlined in KB article 2288864 http://support.microsoft.com/kb/2288864
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.
Article ID: 2540922 - Last Review: April 24, 2014 - Revision: 3.3