1) Fix Displayed Icon in Control Panel Window.
2) Remove all references of the files of dmdm32.cpl and dmdm64.cpl
3) Program Compatibility Assistant message asking "Did this control panel work correctly?" about Modem Diagnostic DLL pops-up on Vista 64-bit OS when diagnostic tool is opened and closed after the installation
It is highly recommended to always use the most recent driver version available.
Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.
Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.