Dec 11, 2007

MSN Messenger Error Code 8100378

You can try solution in below:

Open windows host file with Notepad: C:\Windows\System32\Drivers\etc\ho­sts

Add these 2 lines to the bottom:

Save it and restart msn

Please do remember to remove these lines when the msn service gets back to normal.


  1. I am a newbie in using pc...hence I am sorry if asking a newbie question... Do the purpose of lines suggested to be typed in have anything to do with manual ip? Cuz the place I face the problem of the error code 8100378 does not allow us to use manual ip..