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COD4 won't launch in Win 8.1


HarryWeezer

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Installed, patched, did the PB legacy updater but when launching COD4 multiplayer (single player works fine) I get the startup logo and immediately get the iw3mp.exe stopped working error.

 

I've tried various compatibility modes and running as administrator with no luck.

 

I don't think it's a PB issue because the game won't launch at all, and PB shouldn't come into play until after I'm on a server.

 

During the install when it asked if I wanted to install PB, I said no, because I had just installed COD5 and figured that also installed PB on my system. I ran the PB legacy updater for COD5 and it works just fine.

 

Do I need to reinstall COS4 and then during the reinstall, tell it to also install PB again? Or is this some other problem.

 

Anybody got COD4 up and running on Win 8.1?

 

Thanks...

Edited by HarryWeezer
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As far as i know  you have to specify every game you need run PB with, having it in your system for Cod5 does not mean it will recognize Cod4, you need to do each game separately.

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The legacy updater for COD4 ran just fine as it did for COD5 and I checked to see that COD4 is listed in the PB user folder and it is, along with COD5. So I don't think that's the problem.

 

By the way, I downloaded all of the patches from the clan download directory except the 1.6-1.7 patch which is an RAR and I didn't want to screw with that so I grabbed the .exe elsewhere. But the game appears to be properly patched.

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Harry having very little knowlegde with 8.1 I cant help you but I would be interested in learning the fix

you come up with....Also what little I do know with 8.1 is if you have set up a user account it may install

bits and pieces in different directories and I think every thing is in your app data file

 

 

Patch should be 1.7 for Cod4

 

did you try to launch the game with and with out a head set plugged in ?

perhaps your iw3mp.exe became corrupt after the install....I could upload you

a copy of mine via Xfire

 

 

Worst case a  reinstall may be needed but again follow the path as I stated it should launch

from your app folder

 

Please report back what you come up with

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I am certain I installed and updated PB correctly. Googling it finds lots of folks having problems running COD4 in Win 8.1 but I did come across something that jogged my memory of trying to get it working when Win7 came out, involving stereo mix. I'll try this on my lunch hour:

 

 

"If you are playing Call of Duty 4 on Windows 8, and you encountered following error : iw3mp.exe has stopped working , this is how you can fix it. First, go to Control Panel, Sound, and then click on recording tab. When in recording tab, right click and mark "show disabled devices". There you should see "stereo mix" , just enable it and go play Call of Duty 4 : Modern Warfare.
The fix in this post works 100%, but not all systems are the same. Another trick is to plug in your headphones in the headphone jack. After that you can unplug them when the game starts." 

Edited by HarryWeezer
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It was as simple as plugging in a mike. That fixed it.

 

Amazing...

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Lmao. I have windows 8.1 and it worked fine but then agaib I have had a mic for quite some time.

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Harry can you add your solution to this problem in our wiki aka >XI<Bible thread

 

"If you are playing Call of Duty 4 on Windows 8, and you encountered following error : iw3mp.exe has stopped working , this is how you can fix it. First, go to Control Panel, Sound, and then click on recording tab. When in recording tab, right click and mark "show disabled devices". There you should see "stereo mix" , just enable it and go play Call of Duty 4 : Modern Warfare.

 

plug in your mic/headset
 

:)
 

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I have a USB headset I get this problem also but not on all maps and on new map download I get it a lot I leave game go back in that works sometimes I need to unplug USB load game than plug back in than fine WTF lots of posts on this issue. Ok on the mic plugged in how will that affect my headset mic? I take it I cant use both because you cant enable both plug in mic and headset at same time so the game wont see the plugged in mic?

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USB connections are designed to be temporary...unlike audio or mic input/outputs...there is no fix...

 

sry

 

jn

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