CODE
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"MsnMsgr"=-
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\MSNMessenger]
"MainFrameHidden"=hex:01,00,00,00
"AppSettings"=hex:62,00,02,00
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"MsnMsgr"=-
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\MSNMessenger]
"MainFrameHidden"=hex:01,00,00,00
"AppSettings"=hex:62,00,02,00
this solution works perfectly for me.