When you try to start Windows Live Messenger you will get the following error:
Signing in to Windows Live Messenger Beta failed because the service is temporarily unavailable. Please try again later.
Error code: 800401f3
Error 800401f3 solutions
Try these solutions for error 800401f3
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#1 Unregistered DLLs
You can register them by going to start run and past the following lines one by one. After every line press enter (see below).
regsvr32 Dssenh.dll /s
regsvr32 Gpkcsp.dll /s
regsvr32 Slbcsp.dll /s
regsvr32 Sccbase.dll /s
regsvr32 Softpub.dll /s
regsvr32 Wintrust.dll /s
regsvr32 Initpki.dll /s
regsvr32 Rsaenh.dll /s
regsvr32 Mssip32.dll /s
regsvr32 Cryptdlg.dll /s
regsvr32 Msxml3.dll /s