# WMP - Class not registered error
**URL:** https://forums.speedlife.net/t/wmp-class-not-registered-error/168692
**Category:** PittSpeed Off Topic
**Created:** [August 28, 2004, 8:10am UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692 "2004-08-28T08:10:37Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@lucid\_INTERVAL](https://forums.speedlife.net/u/lucid_INTERVAL)
#### Post date: [August 28, 2004, 8:10am UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/1 "2004-08-28T08:10:37Z")
what the hell does this mean? everytime i try to open any kind of video, it always gives me that error. im getting really pissed off…ive got win98 and wmp 7.1. can anyone help me fix this?
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### Author:  [@lucid\_INTERVAL](https://forums.speedlife.net/u/lucid_INTERVAL)
#### Post date: [August 28, 2004, 8:24pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/2 "2004-08-28T20:24:10Z")
ttt this is pissing me off
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### Author:  [@Shaggy](https://forums.speedlife.net/u/Shaggy)
#### Post date: [August 28, 2004, 8:25pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/3 "2004-08-28T20:25:26Z")
Its a adware thing, or use just might need codec
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### Author:  [@EclipseRST](https://forums.speedlife.net/u/EclipseRST)
#### Post date: [August 28, 2004, 8:28pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/4 "2004-08-28T20:28:55Z")
Probably because your like 5 years behind and need to update EVERYTHING!!!
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### Author:  [@lucid\_INTERVAL](https://forums.speedlife.net/u/lucid_INTERVAL)
#### Post date: [August 28, 2004, 8:46pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/5 "2004-08-28T20:46:35Z")
> [@EclipseRST](#):
>
> Probably because your like 5 years behind and need to update EVERYTHING!!!
i got divx, i tried that first…it didnt do anything. adware…uhh yeah how can i get rid of this fucking error message
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### Author:  [@snowhitejolf95](https://forums.speedlife.net/u/snowhitejolf95)
#### Post date: [August 28, 2004, 8:55pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/6 "2004-08-28T20:55:19Z")
quit looking at porn
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### Author:  [@EclipseRST](https://forums.speedlife.net/u/EclipseRST)
#### Post date: [August 28, 2004, 10:06pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/7 "2004-08-28T22:06:59Z")
Upgrade to WinXP and run WMP 9.x, all your problems will be solved…🙂 Welcome to the 21st century…
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### Author:  [@lucid\_INTERVAL](https://forums.speedlife.net/u/lucid_INTERVAL)
#### Post date: [September 5, 2004, 9:15pm UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/8 "2004-09-05T21:15:15Z")
ttt
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### Author:  [@fshowcars](https://forums.speedlife.net/u/fshowcars)
#### Post date: [September 7, 2004, 6:33am UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/9 "2004-09-07T06:33:49Z")
if the error comes with .AVI’s … then:
Its best to use a DirectShow decoding filter such as FFDShow to decode AVI content. FFDshow will decode XviD, DivX 3/4/5, 3IVX, and has support for many other codec’s.
It can be downloaded at [http://sourceforge.net/project/showfiles.php?group\_id=53761&package\_id=59355&release\_id=255667](http://sourceforge.net/project/showfiles.php?group_id=53761&package_id=59355&release_id=255667)
Now, if FFDShow does not support decoding the content in question please do the following.
- Download and use GSpot ([http://www.headbands.com/gspot/download.html](http://www.headbands.com/gspot/download.html))
- Run the installer, open GSpot, goto File\>\>Open.
- Look for the 4CC code for the file’s Video Codec
- [http://www.zachd.com/pss/pss.html#codec](http://www.zachd.com/pss/pss.html#codec) will help you.
If you have the correct codec installed and the video still doesn’t play download GSpot (Above) and run your AVI though the program. If Gspot says “Failed to render”, “Missing Chuck”, etc. then your video file is corrupt.
if the error comes when opening MPEG or MPG (Also VCD, SVCD)… then:
Reinstalling DirectX will overwrite quartz.dll and re-register it in Windows. quartz.dll is the MPEG-1 Decoder that WMP will default to. ([http://www.microsoft.com/windows/directx/default.aspx?url=/windows/directx/downloads/default.htm](http://www.microsoft.com/windows/directx/default.aspx?url=/windows/directx/downloads/default.htm))
If reinstalling DirectX does not fix the error then its likely the you have an MPEG-2 encoded file. So you will want to purchase an MPEG-2 decoder. ([http://www.zachd.com/pss/pss.html#mpeg2](http://www.zachd.com/pss/pss.html#mpeg2))
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### Author:  [@fshowcars](https://forums.speedlife.net/u/fshowcars)
#### Post date: [September 7, 2004, 6:34am UTC](https://forums.speedlife.net/t/wmp-class-not-registered-error/168692/10 "2004-09-07T06:34:13Z")
the directx fix should probably solve your issue…