amvo.exe or yahoo messenger automatic signout virus solution

this virus dont let u signout to yahoo messenger as get signout automatically.
u can locate the virus by typing 'msconfig' in run pad. their u wud find a process named as 'amvo.exe' , that's the virus.
if we follow some simple easy steps its very easy to remove virus manually

* start system in safe mode and checked the process, and close the msconfig window and resatrted pc again .

* Next openRegistry Editor (open run, and type regedit). search for "amvo.exe" and find the entry related to it. delete the whole key.

* Then I have browsed to Windows\System32 folder, and deleted amvo.exe, amvo0.dll, amvo1.dll.

* This virus put an Autorun.inf file, and .cmd file in every drive's root. remove all those just by installing avira anti virus software free ware(just scan after updating the anti virus and remove all autoruns) or by anyother good antivirus .