When you start Windows Messenger or MSN Messenger you cannot sign in, and you get error code 0x81000378 along with the message:
You cannot use Messenger at this time because your contact list is not available. Please try again later.
Click Help to learn more about your contact list. 0x81000378
If error code 0x81000378 appears Microsoft is most likely either working on the Messenger service or having trouble with one or more of the servers providing it. This normally won't take longer then a few minutes/hours. For more information you can check the .Net Messenger Service Status or our own forum.
This is how the Service Status looks with a normal situation
Please note that the Service Status is known to not always be very accurate, if problems do appear the best thing to do is wait them out. Surely there are many other very interesting things to do :)
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