Before you can delete it, the DLL file must be deregistered.
In BargainBuddy/Apuc, this DLL is inside the Bargain Buddy folder in ‘Program Files’. Here there will be one or more ‘bin’ folders, one of which will contain a file called apuc.dll. If, for example, it’s in ‘bin2’, the commands to enter (from a DOS command prompt window, under Start->Programs->Accessories) would be:
regsvr32 /u “\Program Files\Bargain Buddy\bin2\apuc.dll”
(If your ‘Program Files’ directory has a different name (for example, on a non-English version of Windows), or is on a different drive, you’ll have to substitute that in the path above.)
In BargainBuddy/Version, the file you have to get rid of is instead called ‘CC_Versn.dll’, and it’s inside the ‘Net2Phone CommCenter’ folder in Program Files. The commands to get rid of it are:
regsvr32 /u “\Program Files\Net2Phone CommCenter\CC_Versn.dll”
After the deregistration, end the ‘Bargains’ process from the Task Manager (ctrl-alt-delete). Having successfully done this you should be able to delete the entire ‘Bargain Buddy’ folder. To clean up the registry, run regedit and delete the value in HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run that refers to Bargain Buddy. You can also delete the key HKEY_LOCAL_MACHINE\Software\Bargains; in the Adp variant this is HKEY_LOCAL_MACHINE\Software\Microsoft\adp instead.