Using Microsoft office 2007.
I try to open a pdf file from Start->Run.
I typed the following command on 2 comps:
"c:\program files\office2007\office12\outlook.exe" "c:\map-hit.pdf" %f
(just an example, no matter what file to open and I change of course the path accordingily).
On one it works but on the other it returns an error "Cannot start Microsoft Office Outlook. The command line argument is not valid. Verify the switch you are using."