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DLL Error: Illegal System DLL Relocation - Who Is Responsible?

There is an error message which you might start receiving if you're running Microsoft Windows XP SP2 (including either the Tablet Edition or the Media Center). This error will occur only if you have downloaded Microsoft update 925902 (MS07-017) and the security update 928843 (MS07-008). You must also have installed RealTek audio components. This error message will occur when you're usingRealTek HD, ElsterFormular, Audio Control Panel, CD-tag, and TUGZip. It will read:

(Application name)-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.

The message will then inform you that Microsoft has created a hotfix for this error, and will point you to the proper links for downloading.

What Microsoft doesn't tell you in the error message that the hotfix they provide to take care of your RealTek DLL problems is necessary only because an earlier patch they developed to cure a security flaw in the ANI cursor promptly caused the problems with RealTek.

Because the problem ANI security vulnerability was so serious, however, Microsoft apparently thought the real tech issues could take a backseat. They may have been right, because as of April 2007, there were more than 2000 websites which were repaired to exploit the ANI vulnerability and reach your PC’s security.

The hot fix developed for the Realtek problem was successful, however, so now both the security issue and a performance issue have been corrected.

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