windows xp blues: ibm0001.exe malware

Suddenly my uncle reported that whenever he boots up his PC he is getting an error

"Windows cannot find C:\program files\common files\microsoft shared\web folders\ibm0001.exe" that file does not exist at all. Found a solution that worked at that instant

open regedit type regedit in Run prompt

navigate to the entry

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

there will be a key named "shell" with value explorer.exe and with multiple spaces you will find ibm0001. exe link.Restore this to explorer.exe alone..

even find result will show only explorer and i missed the ibm0001.exe at the end that was there at the end of the string with several empty spaces in the middle.