Open a DOS command prompt window (from Start->Programs->Accessories) and enter the commands: cd "%WinDir%\System" regsvr32 /u DialerOffline.dll You can then delete the 'DialerOffline.dll' file inside the System folder ('System32' on Windows NT/2000/XP) inside the Windows folder, and whatever dialler connections are using it - in the specimen I tested this was a 'LiveGirls' desktop icon and a folder 'C:\blankdialer', but this may vary.