Links in Office documents cause invalid session error

Problem

Clicking on a link within a Microsoft Word, Excel or Powerpoint document, invalid session error is shown.

Solution

This reason for the issue and possible resolutions can be found from Microsoft http://support.microsoft.com/kb/899927

Customization of the error messages, including help pages and links can improve the end-user experience in these cases. Please see the Ubisecure SSO Login UI Customization for more information.