Cannot open any .cpl files

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angryTech - 21 Jan 2008 01:40 GMT

This computer is running Windows XP Home SP2.

When I right click on the desktop and select Properties I receive the
following pop-up message:

Window Title: RUNDLL
Message:
Error in setupapi.dll
Missing entry:s

When I open up Control Panel I can see all the icons, but double clicking on
any of them result in the same pop-up message described above. Also, trying
to open the .cpl (like desk.cpl) files from the run command also reslut in
the pop-up message. The setupapi.dll file does exist in the Syste32
directory, and I've replaced it. I also ran sfc /scannow, which did not find
any corrupted files.

I've tried various troubleshooting steps found on the web but nothing has
worked. I get the same pop-up message when I boot into Safe Mode, even when
logged in as a different user.

Any help would be greatly appreciated.

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MAP - 21 Jan 2008 04:15 GMT

> This computer is running Windows XP Home SP2.
>
[quoted text clipped - 18 lines]
>
> Any help would be greatly appreciated.

Run the .cpl assoc. fix at the link below
http://www.dougknox.com/xp/file_assoc.htm
Note: a reboot may be required.

Signature

Mike Pawlak

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angryTech - 21 Jan 2008 15:41 GMT

Thanks for the suggestion Mike, but this did not fix my problem. I still get
the same pop-up message box when I try to open a .cpl file.

I made sure I rebooted the machine after I merged the registry settings.

> > This computer is running Windows XP Home SP2.
> >
[quoted text clipped - 22 lines]
> http://www.dougknox.com/xp/file_assoc.htm
> Note: a reboot may be required.

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angryTech - 23 Jan 2008 03:17 GMT

I tried an in-place upgrade of Windows XP (installing XP on top of itself)
and that did not fix the problem either.

In the end, I had to wipe the machine clean and start from scratch. Oddly
enough, that *did* work.

> Thanks for the suggestion Mike, but this did not fix my problem. I still get
> the same pop-up message box when I try to open a .cpl file.
[quoted text clipped - 27 lines]
> > http://www.dougknox.com/xp/file_assoc.htm
> > Note: a reboot may be required.

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