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140 posts

Master Geek
+1 received by user: 12

Topic # 96256 23-Jan-2012 20:17 Send private message

I have a  ton of instructional videos I need to use and my MP12 on Win7 keeps telling me I can't play them, which are in Microsoft's own format. Windows Media Video (WMV)

"Windows Media Player cannot play, burn, rip, or sync the file because a required audio codec is not installed on your computer."

Windows Media Player error C00D11C7Windows Media Player can't play, burn, or sync the file because a required codec isn't installed on your computer.

Yet its their own file type!!!!

Its really pissing me off, I have scoured the net looking for a solution, and everyone talks around the topic but so far have not found a single solution. Years of programming videos are at stake.

Does anyone have a solution? I am running stock Win 7 home, but its also been reported on Win7 professional as well.

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3151 posts

Uber Geek
+1 received by user: 597

Microsoft NZ

  Reply # 572525 23-Jan-2012 21:10 Send private message


WMV is just a container

you need a codec for whoever encoded the files          

Where did the files come from?

1332 posts

Uber Geek
+1 received by user: 152
Inactive user

  Reply # 572526 23-Jan-2012 21:16 Send private message

Grab a copy of MediaInfo ( and paste the output here, we'll be able to let you know which CODEC you are missing.

170Mb/s faster than TimA
3349 posts

Uber Geek
+1 received by user: 769

Think Concepts

  Reply # 572539 23-Jan-2012 21:54 Send private message

Woah people still use Windows Media Player? I can't even remember what it looks like.

Could give VLC Media Player a go, plays almost everything you chuck at it, opensource and available at

Michael Murphy
[Twitter] [] [IPv6 Sage]

Everything I say here is my own opinion and not that of my employer.

140 posts

Master Geek
+1 received by user: 12

  Reply # 572541 23-Jan-2012 22:00 Send private message

Thanks guys :-) VLC didn't open them either

Here is the output from the program

Complete name                    : D:\Media\2559B_02d005.wmv
Format                           : Windows Media
File size                        : 3.92 MiB
Duration                         : 2mn 50s
Overall bit rate                 : 192 Kbps
Maximum Overall bit rate         : 206 Kbps
Encoded date                     : UTC 2002-01-29 02:47:39.296

ID                               : 2
Format                           : Screen Video
Codec ID                         : MSS1
Codec ID/Info                    : Windows Screen Video
Codec ID/Hint                    : Windows
Description of the codec         : Windows Media Screen V7
Bit rate                         : 187 Kbps
Width                            : 804 pixels
Height                           : 604 pixels
Display aspect ratio             : 4:3
Bit depth                        : 8 bits

ID                               : 1
Format                           : ACELP
Format profile                   : .net
Codec ID                         : 130
Codec ID/Hint                    : Sipro
Description of the codec         : - 16 Kbits/s, 16000Hz, Mono
Duration                         : 2mn 50s
Bit rate                         : 18.3 Kbps
Channel(s)                       : 1 channel
Sampling rate                    : 16.0 KHz
Bit depth                        :  bit0
Stream size                      : 382 KiB (10%)

3263 posts

Uber Geek
+1 received by user: 119


  Reply # 572543 23-Jan-2012 22:01 Send private message

Download the Shark007 codec pack from the below link. Any file you will open in WMP will run flawlessly including .mkv format

Do whatever you want to do man.


1753 posts

Uber Geek
+1 received by user: 197

  Reply # 572565 23-Jan-2012 23:18 Send private message

or try the Klite codec pack which will also install the classic media player which plays anything, i have used it for years and haven't come across a media file it wont play. i just use the standard pack but they all work

Infrastructure Geek
3829 posts

Uber Geek
+1 received by user: 127

Microsoft NZ

  Reply # 572568 23-Jan-2012 23:35 Send private message

looks like its using pretty old video and audio codecs - mss1 and - and its probably that you dont have these codecs installed.

try the following codec download from

Technical Evangelist
Microsoft NZ
Twitter: @nzregs

6 posts

Wannabe Geek

  Reply # 609784 16-Apr-2012 04:47 Send private message

Hi there

Any solution to this problem? I am confrunted with the exact same issue: have a lot of edu material i cannot play. Known codec packs do not help. VLC plays audio only - with a huge impact on my CPU, All other media players with a LOT of codec packs, play video only.

Windows Media Player gives error - and this is one of the biggest misleads i have ever seen, and one MS rule proves to be right again: MS products sometime are not backward compatible (eg the monster called IE - a webdevelopers nightmare - is not compatible with itself - it needs a button and comp. mode - grrrr). It is like a file made in Photoshop5 cannot be opened in Photoshop7 :)

Anyways, after hours of research i found out that MSS1 is a screencast codec from MS what is NOT included in Windows 7  or Windows Media Player 12, and cannot be downloaded either - from anywhere. A big dead end!

I hope others could do something about this, and i am really interested in a solution!

Converting videos is not an option from 2 main reasons: converter also needs to decode video first so needs a codec, and who will want to convert hundreds of hours of videos?


1753 posts

Uber Geek
+1 received by user: 197

  Reply # 609823 16-Apr-2012 09:07 Send private message

you could try KMPlayer , havent found anything that it wont play.

Infrastructure Geek
3829 posts

Uber Geek
+1 received by user: 127

Microsoft NZ

  Reply # 610206 16-Apr-2012 20:14 Send private message

did you try the download link I put in my post?

if that's not working, perhaps you can post a link to some content that you're having trouble accessing and we can take a look at it?

Technical Evangelist
Microsoft NZ
Twitter: @nzregs

2329 posts

Uber Geek
+1 received by user: 79

  Reply # 610213 16-Apr-2012 20:27 Send private message

Note, if you're downloading torrents with .wmvs, some of them are actually viruses and have a link for you to click to "download a codec". Of course, that link is actually a link to a website that will try to exploit your browser and install malware on it.

6 posts

Wannabe Geek

  Reply # 610231 16-Apr-2012 21:19 Send private message


Yes i tried that link, no help.

Yes i tried KMplayer - same: plays video only, no audio.

The files are like 40MB vids, so i cannot really add as attachment, but i will try to upload on a file sharing site somewhere.

Thanks for the replies!

PS: any reliable fileshare website where i could upload? Did not found any.

84 posts

Master Geek
+1 received by user: 2

  Reply # 610246 16-Apr-2012 21:41 Send private message

qfreddie:...PS: any reliable fileshare website where i could upload? Did not found any. works well for me.

I have about 4GB of file there. All legal GPS maps. Easy downloading and no waiting.


6 posts

Wannabe Geek

  Reply # 610300 17-Apr-2012 02:58 Send private message

Thanks for the info. Here is a video file:

Speech is hungarian but if you get there to hear it, it will not matter, as the problem will be solved :)

857 posts

Ultimate Geek
+1 received by user: 54

  Reply # 610301 17-Apr-2012 04:18 Send private message

if they wont play in VLC then they are either corrupt or encoded with very strange codecs that almost nobody uses.

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