After downloading and installing the latest security update from Windows Update, and restarting my computer, I got the following 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.
I then proceeded to Add or Remove Programs and uninstalled the latest update. It went away all right, but since Windows Update won’t stop bugging me, and as I also want my copy of Windows to always be up to date, I decided to do some research. It turns out, it has something to do with the Realtek HD Audio Control Panel. And since that is what drives the audio in my new Acer, it was affected.
Microsoft released a hotfix for this. Just proceed with the update, download and run the the hotfix file, and that’s it. Affected are those who run Microsoft Windows XP Service Pack 2 and has Realtek HD Audio Control Panel (Rthdcpl.exe)Â installed.Â Read here for a more detailed explanation. Thanks also to this link for reaching my Google search.