How to Fix MSN Messenger Error Code 8000401a
When trying to login to MSN Messenger you may get the following error code: Error 8000401a. This is caused by a registry issue.
Instructions
- If you are not comfortable with editing the registry please try my MSN removal guide here
- If you are comforatable with editing the registry open the following key
HKEY_CLASSES_ROOT\AppID\
- Backup Your Registry
Delete the following key (I suggest using the find)
380689D0-AFAA-47E6-B80E-A33436FE3
Let me know if this helped you! Leave a comment.

Hi again
i did the above step but it did not solve my problem the first time
i restarted the system and did it a gain
nothing changed
but by searching in the web i found another code which is listed under HKEY_CLASSES_ROOT\AppID
i deleted it and it resolved my problem
i tried to find that code
coz i did not save it
but i could not
thankyou anyway
Abdul
WOW, I have has so much trouble with this, and tried many other solutions, none helped except your solution thank you very much
thanks for the tip, it was perfect in fixing the problem.
p.s it was so easy, took like only 40seconds to fix. =]
Hey wonderful advice THANKS!!!!!!!!
Magic
Thankkkkkkkkkkkksss a looooooooooot