I have never seen or heard about such a problem with MailItem.Save.
I strongly suspect that something happens in your code :-)
Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool
"pete_42" wrote in message
oups.com...
YESYESYES!!!!! 
Now it works. If I Invoke() the call manually it works. But now I found
a different problem. 
Once I Save an unsaved mail, the "pMailItem" seems to become bad. I
can't pMailItem-Release it. Or Invoke Save again. Both causes a crash.
Does the Save invalidate the pMailItem? Don't I have to release it? Or
do I have to wait for the Save to finish? Somehow...