You were right: there were several 8.3 versions with leading MICROS~...:

26.01.2007 12:57 DIR MICROS~4 Microsoft ActiveSync
23.01.2007 23:52 DIR MICROS~2 Microsoft Bootvis
13.01.2007 13:34 DIR MICROS~1 microsoft frontpage
18.01.2007 01:47 DIR MI08C4~1 Microsoft Money 2005
14.01.2007 21:07 DIR MICROS~3 Microsoft Office
20.01.2007 20:25 DIR MICROS~1.NET Microsoft.NET

and "Microsoft Office" actually corresponds to "MICROS~3" not
"MICROS~2"!

What might have caused this havoc? I certainly never touched any of
these 8.3 names And why do long filenames get automagically changed
here?

Anyway - I changed that now to "MICROS~3" and let's see whether that
finally resolves the issue...

Thanks for the hint!
Michael

"Brian Tillman" wrote in message
...
...
Perhaps "MICROS~2" is not the short form of the "Microsoft Office"
folder. Open a command prompt window, change to "Program Files", then
use "dir /x /p" ro locate the short name of "Microsoft Office" and if
it's not "MICROS~2", change the Open field in the "URL:Mailto
Protocol" file type to use the proper short name.
--
Brian Tillman