Error Message:  Rthdcpl.exe - Illegal System DLL Relocation :
 

The system DLL user32.dll was relocated in memory. The application will not run properly. The relocation occurred because the DLL C:\Windows\System32\Hhctrl.ocx occupied an address range reserved for Windows system DLLs. The vendor supplying the DLL should be contacted for a new DLL.

Solution:  This problem occurs when the Realtek HD Audio Control Panel (Rthdcpl.exe) by Realtek Semiconductor Corporation is installed in the PC.  If Microsoft Security update 925902 (MS07-017) and security update 928843 (MS07-008) are installed manually or through Automatic Updates the Hhctrl.ocx file that is included in security update 928843 and the User32.dll file that is included in security update 925902 have conflicting base addresses.

The file below can be downloaded and run on your system to correct this behavior.