From: "Rich Gauszka" 

Some are reporting that the Update disabled their AVG Control Centre

"Rich Gauszka"  wrote in
message news:4612b93e$1{at}w3.nls.net...
>
> http://support.microsoft.com/kb/935448/en-us
>
> SYMPTOMS
>
> When you start a computer that is running Microsoft Windows XP with
> Service Pack 2, the Realtek HD Audio Control Panel may not start.
> Additionally, you may receive the following 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.
>
> This problem occurs when the Realtek HD Audio Control Panel (Rthdcpl.exe)
> by Realtek Semiconductor Corporation is installed.
>
> CAUSE
> This problem may occur after you install security update 925902 (MS07-017)
> and security update 928843 (MS07-008). 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. This
> problem occurs if the program loads the Hhctrl.ocx file before it loads
> the User32.dll file.
>
> RESOLUTION
>
> Hotfix information
> A supported hotfix is now available from Microsoft. However, it is
> intended to correct only the problem that is described in this article.
> Apply it only to systems that are experiencing this specific problem. This
> hotfix may receive additional testing. Therefore, if you are not severely
> affected by this problem, we recommend that you wait for the next Windows
> XP service pack that contains this hotfix.
>
> To resolve this problem immediately, contact Microsoft Customer Support
> Services to obtain the hotfix. For a complete list of Microsoft Customer
> Support Services telephone numbers and information about support costs,
> visit the following Microsoft Web site:
>
> http://support.microsoft.com/contactus/?ws=support
> (http://support.microsoft.com/contactus/?ws=support)
>

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