Thankfully for all who answering all the question :) :) :
When am sign in to Windows live Messenger am having anerror : :confused: :confused:
Error code: 80048820
Extended code :80048412

Possible causes and fixes Here:
Error Code 80048820 MSN Messenger (http://www.computerperformance.co.uk/Logon/code/code_80048820.htm)