When you try to open a folder I get a pop up Windows has stopped working

When you try to access this folder and this folder, I get a pop up windows has stopped working. I ran a virus scan, memory diagnostics and now I am at a loss. If I didn't need some files, I would just delete the folder. All my other files and folders work fine and I have Vista. Please help :)

Signature of the problem:
Problem event name: APPCRASH
Application name: explorer.exe
Application version: 6.0.6002.18005
Application timestamp: 49e01da5
Fault Module name: mc_dec_mp4v.dll
Fault Module Version: 8.5.0.14265
Timestamp of Module error: 4b81ceb4
Exception code: c0000005
Exception offset: 00012d2f
The system version: 6.0.6002.2.2.0.768.3
Locale ID: 4105
Additional information 1: fd00
More information 2: ea6f5fe8924aaa756324d57f87834160
Additional information 3: fd00
Additional information 4: ea6f5fe8924aaa756324d57f87834160

Fault Module name: mc_dec_mp4v.dll

Product name: Mainconcepta® Mpeg - 4 Video Decoder engine
Description: Mpeg-4 Video Decoder engine

This codec is try to preview the files in the folder. You can try unstalling the codec or him reassociate the file type (change the default program):

1. open default programs by clicking the Start button, click default programs.

2. under "Choose the programs that Windows uses by default", click "associate any type of file or Protocol with a program.

3. under the parchment of column 'name' down and look for '.mp4 and .mp4v', select one at a time then click on the "Change Program" button at the top right of the box.

4. in the "open with" box under "Recommended programs", choose another program or click on the Browse button below to select the program you want.

5 Click to place a check mark in the box "always use the selected program to open this type of file".

6. click on OK to exit.

Change the programs that Windows uses by default
http://Windows.Microsoft.com/en-us/Windows-Vista/change-which-programs-Windows-uses-by-default

Tags: Windows

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