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XPSSHHDR.DLL - Please Help Me!

Yesterday my antivirus deleted all shell extension in registry,
HKCU\Software\Microsoft\Windows\Currentversion\Shell Extension\Approved
Now, my computer have a many problem.

when i open my mpc.exe (Media Player Classic)
it give an error "Visual C++ Runtime Error, R6002 floating point support not loaded"

when i open vcredist_x86.exe (Visual C++ 2005 & 2010)
it give an error too "vcredist.exe is not a valid win32 application"

and other executable error...

Thankyou for your support

The details of the shell extension that might cause the problem:

Shell Extension Name:  
Description: Package Document Shell Extension Handler
Company: Microsoft Corporation
Product Name:
File Version: 6.1.7600.16385 (win7_rtm.090713-1255)
CLSID: {44121072-A222-48f2-A58A-6D9AD51EBBE9}

If you think that you have similar problem in your system, you can try to fix the problem by disabling the specified shell extension. In order to do that, simply follow the instructions below:

  1. Download and run the ShellExView utility from this Web page.
  2. Find the right shell extension according the details specified above.
  3. Select this shell extension and press F7 to disable this extension. After disabling the shell extension, check if the problem still occurs. If the problem still occurs, you should enable back the shell extension by pressing F8, and then try to search for another shell extension that might cause your problem.

This shell extension problem was reported by Stefan