Unregister these DLLs with Regsvr32, then reboot: systemroot+\system32\msiebho.dll systemroot+\system32\msietk1020.dll systemroot+\system\msiebho.dll systemroot+\system\msietk1020.dll Remove these registry items (if present) with RegEdit: HKEY CLASSES ROOT\clsid\{a096a159-4e58-45a9-8ee6-b11466851181} HKEY CLASSES ROOT\software\microsoft\windows\currentversion\explorer \browser helper objects\{a096a159-4e58-45a9-8ee6-b11466851181} HKEY LOCAL MACHINE\clsid\{a096a159-4e58-45a9-8ee6-b11466851181} HKEY LOCAL MACHINE\software\classes\clsid\{a096a159-4e58-45a9-8ee6-b11466851181} HKEY LOCAL MACHINE\software\microsoft\windows\currentversion\explorer \browser helper objects\{a096a159-4e58-45a9-8ee6-b11466851181} Remove these files (if present) with Windows Explorer: systemroot+\system32\msiebho.dll systemroot+\system32\msietk1020.dll systemroot+\system\msiebho.dll systemroot+\system\msietk1020.dll