Mega 10.20 breaks WMP11 on XP x64 (fixed, but not sure by who)

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Mega 10.20 breaks WMP11 on XP x64 (fixed, but not sure by who) Empty Mega 10.20 breaks WMP11 on XP x64 (fixed, but not sure by who)

Post by Kurt_Aust Fri Jan 17, 2014 8:13 am

OS: Windows XP Professional x64 edition (fully updated)

If the K-Lite Mega codec pack version 10.20 is installed then when one tries to play a video with Windows Media Player 11 it immediately closes as if the process had been killed, there is no error message given.

If K-Lite Mega 10.20 is uninstalled then one can play the file in WMP11 for audio only.

If K-Lite Mega 10.15 is installed then WMP11 can play videos normally.

Media Player classic works properly when either 10.20 or 10.15 is installed.


Last edited by Kurt_Aust on Sun Jun 08, 2014 9:57 pm; edited 1 time in total

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Post by Admin Fri Jan 17, 2014 5:45 pm

Does it happens with any type of video? Also if no subtitles are present?

Look in Control Panel > System > Administrative Tools > Event Viewer > Windows Logs > Application
There you may be able to find a crash log. If so, look at the "Faulting module name".

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Post by Kurt_Aust Fri Jan 17, 2014 9:58 pm

It appears to be any type of video, .avi, .mov &.rm tested, none of which loaded a subtitle file.

Further investigation reveals that Mega 10.20 trips "Simulate execution flow" protection.

http://download.microsoft.com/download/7/A/A/7AA570E7-92DF-4C28-BE12-E72831797666/EMET%20User%27s%20Guide.pdf

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Post by Admin Sun Jan 19, 2014 8:39 pm

Could be a false positive detection in EMET. You should disable that mitigation for MPC-HC. EMET v4.0 also had a false positive for MPC-HC, which was fixed in EMET v4.1.

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Post by Kurt_Aust Mon Jan 20, 2014 6:02 am

Well at least you know about it, as EMET targets suspicious behaviour rather than known malware, it wouldn't be at all surprising if other security programs start flagging it.

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Post by Admin Mon Jan 20, 2014 6:07 pm

Enabling "deep hooks" option in EMET 4.1 may solve the false positive from what I have heard.

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Post by Kurt_Aust Sun Jun 08, 2014 9:56 pm

I'm not sure if it's due to changes in EMET 4.1 update 1 or K-Lite Mega Codec 10.5.5 but this problem has been resolved under default EMET settings.

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