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How may I get Explorer to preview .m3u files as text? I have tried Windows 7 - Preview other file types as text in Preview Pane and carefully checked, but no joy.

I got no success with .m3u using PreviewConfig:


or the manual method too:


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  1. Start >> Regedit.exe

  2. Find HKEY_CLASSES_ROOT\.m3u key and check the 'Default' setting (in my case VLC.m3u)

enter image description here

  1. Find HKEY_CLASSES_ROOT\VLC.m3u (in this path substitute VLC.m3u with the value of your default setting in HKEY_CLASSES_ROOT\.m3u)

  2. Create a new key in HKEY_CLASSES_ROOT\VLC.m3u: shellex

  3. Then in HKEY_CLASSES_ROOT\VLC.m3u\shellex also a new key: {8895b1c6-b41f-4c1c-a562-0d564250836f}, so it should look like this:

enter image description here

  1. The {8895b1c6-b41f-4c1c-a562-0d564250836f} key tells Windows that you want to use a preview handler, now you only should specify which one you want to use. Set HKEY_CLASSES_ROOT\VLC.m3u\{8895b1c6-b41f-4c1c-a562-0d564250836f} Default to this value: {1531d583-8375-4d3f-b5fb-d23bbd169f22} (text handler ID)

  2. If you want to use other handlers in shell you can find their ID's in the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\PreviewHandlers

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Thanks, but that failed. , , . I was surprised to see Media Jukebox there., because .m3u Open launches Textpad. – ChrisJJ Oct 10 '15 at 13:09
@ChrisJJ That is beacause you've already modified you registry with Previewconfig (and possibly you manually edited it, too). Revert to the original settings, and only apply the modifications I suggested. This way it should work. Moreover you have no settings in your .m3u key Content Type, and PerceivedType which should be 'audio/x-mpegurl' and 'audio' respectively. When a file's content cannot be determined windows handles it as text by default. – anghra Oct 12 '15 at 8:30
I made those changes I don't know the original settings. Would you like to add the further required settings to your solution? – ChrisJJ Oct 12 '15 at 19:47
try deleting the three '' keys. (these were probably made by Previewconfig) Otherwise I have no further idea :D – anghra Oct 12 '15 at 23:31
Done but no joy. Thanks anyway for trying. – ChrisJJ Oct 14 '15 at 0:26

right click the file -- > open with --> choose notepad from the list of programs, then put a checkmark in the "open future files with this program" (or whatever it says to that effect)

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Thanks, but that does not affect the preview. – ChrisJJ Mar 14 '13 at 1:33
whoops! missed that... not sure on how to change the preview... sorry. – SnakeDoc Mar 14 '13 at 1:36

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