Approval Workflow / Outlook / Approval Form

Mike12345 — Wed, 09 Sep 2009 12:25:18 GMT

I have created standard (sharepoint built-in) approval workflow, which sends a mail to the approver.
By clicking [Edit this Task] in the approver mail a form opens within oulook and the user can approve/reject the item. This works for people regardless if they have infopath installed or not.

Unfortunatly i have a few machines where the [Edit this Task] button doesn't open the approval form - instead it opens the sharepoint website with the item.

Does anybody knows how i can change this behaviour?
A registry key maybe? Does they need a special Office Version?

I worked through:
http://support.microsoft.com/kb/970199 and
http://vettekerry.wordpress.com/2008/06/11/edit-this-task-in-outlook-2007-doesnt-work/

but they didn't helped me much. :-(

BTW: All workstations use Office 2007.