Racing Green,
This is everything that I would either suspect of needing to be removed:
C:\WINDOWS\SYSTEM\WMIEXE.EXE
Have Hijack This! fix:
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = about :NavigationFailure
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about :NavigationFailure
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = about :NavigationFailure
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about :NavigationFailure
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about :NavigationFailure
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about :NavigationFailure
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about :blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about :blank
O2 - BHO: (no name) - {73E09961-3272-11D9-988F-44458EAA6B40} - C:\WINDOWS\SYSTEM\JIFFNMA.DLL
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [autoclk] autoclk.exe
O18 - Filter: text/html - {73E09960-3272-11D9-988F-4445E1E6CEDB} - C:\WINDOWS\SYSTEM\JIFFNMA.DLL
Take Care,
Richard