When I try to start MS Outlook 2007 it fails with message: Cannot start Microsoft Office Outlook. Cannot open the Outlook window. The set of folders cannot be opened. Outlook is using an old copy of you Offline Folder file (.ost). Exit Outlook, delete the ost file, and restart Outlook. A new file will be automatically create the next time you initiate a send/receive. The problem now is that I don't have a ost file. I searched my C and D drive and found no file with extension ost. This is a bit confusing. How can I delete a file that doesn't exist??

Here is appropriate forum for Outlook http://social.technet.microsoft.com/Forums/en/outlook/threads Thank for understanding Milos

Here is appropriate forum for Outlook http://social.technet.microsoft.com/Forums/en/outlook/threads Thank for understanding Milos