Initially try scanpst.exe, the repair tool on your data file, run it several
times if it reports/fixes err's

"Yogi" wrote in message
...
Cannot start Microsoft Office Outlook. Cannot open the Outlook window.
The
set of folders cannot be opened. The file . . . .pst cannot be opened.

"DL" wrote:

What was the exact err msg?

"Yogi" wrote in message
...
I installed vista sp1 yesterday.

All indictions are that the install was successful.

I launched Outlook 2007.

After many minutes (15), I received a dilaogue box indicating that
Outlook
could not open the pst file.

I had routinely opened the pst just before the install to respond to
outstanding messages before the upgrade.