So even though Treyarch said, or maybe it was Activision, whoever it was someone said that hacking / modding your rank in Call of Duty 5 wouldn’t be possible anymore. Either they have lied or this isn’t really a Call of Duty rank hack. But I found this thread on Warez-bb.org and I’m not going to link to it for legal reasons [ warez-bb.org/viewtopic.php?t=1781446&highlight= ]
So apparently you just download that file and it will crack your rank to 40, it looks legit but I really don’t know. I’m already ranked 40 and to be honest I don’t feel like screwing with it. I’m sure it’s fine, just be sure to scan it before running it. If you get a chance and remember, report back on if it works or not.

file is here

Below is a list of fixes for COD5, atleast the widespread problems. If your problem isn’t on the list below I suggjest going to CallofDuty and signing up at their forums and see if you can’t get some help there. The biggest error seems to be with d3dx9_37.dll. So follow the directions and you should be good to go.

Please note that these fixes MAY or MAY NOT work for you. But this is the common way to fix your problem. I’m sorry if it doesn’t help you.

—————————

These are All/Most of the possible Fixes so far. Please note there is no guarantee any of these will work. “please note these can change at any time”
Unfortunately for me NONE of these work for me at all, but are said to work for others.
Links will be at the end of the post

1.*Server Authentication Failure*
a. Refresh server list
b. Try reloading your online profile “cod5 player”
c. Restart game. “This one almost always works for me”

2.*d3dx9_37.dll*
This can happen trying to launch cod:WW beta, or while loading map/s.
a. Update your DirectX 9.0 –Doesn’t work for me
b. Download the d3dx9_37.dll file and extract it to “C:\Program Files\Activision\Call of Duty - World at War Beta” Location may vary –Doesn’t work for me “This also seems like a random place for a DX file so if someone finds the correct spot to put this please tell me”
c. Extract d3dx9_37.dll into “C:\WINDOWS\system32″ –Doesnt work for me
d. Extract DirectX Redistributable 9.0c (August 2008) to “C:\WINDOWS\system32″

3.*Black Screen*
This can happen trying to launch cod:WW beta, or while loading map/s.
a. Restart comp.
b. Make sure *ALL* drivers are updated. “Includes: Soundcard “audio drivers”, Videocard”
c. Reinstall “A Last resort”
d. There has been no “Official or Possible fix as of yet”

4.*Unhandled Exception Error*

VISTA:
a.

1. Go to Control Panel
2. The click on “Hardware and Sound”
3. Click on “Sound”
4. Doble click on “speakers”
5. go to the Advanced tab
6. Set the default format to “24 Bit, 48000 Hz (Studio Quality)”
7. Thats it!

b. Control Panel > Hardware and Sound > Sound > Speakers > Properties > Advanced Tab
change the “Default Format” to 24 bit, 48000 Hz (Studio Quality)

XP/SP3
PCI telephone modem card was causing my issue “Eskimonio”
a. My Computer > Properties > Hardware > Device Manager > Sound, vid/game Controllers > UNIMODEM Half Duplex Audio Device > DISABLE

5.*Error Creating Online profile”
This happened to me when I updated my drivers.

• a. Restart
• b. Run as administrator.
• c. Restart comp.
• d. Reinstall

6.*Error Connecting to Online Servers*
This is after it verifies your user “online player”
a. Restart game “usually doesn’t work but try”
b. Restart comp. “said to work”
c. Uninstall/Reinstall “Make sure u uninstall EVERYTHING to do with cod5 *includes all other player profiles*”

7.*Sound Fix* “Krigo”

1. Go to Control Panel
2. The click on “Hardware and Sound”
3. Click on “Sound”
4. Doble click on “speakers”
5. go to the Advanced tab
6. Set the default format to “24 Bit, 48000 Hz (Studio Quality)”
7. Thats it!
   -If you have Creative SB X-Fi then you need to install the Beta Driver dated 17th Oct

8.*Castle Error* “Help me”
This error happens when you try to load the map “Castle”
-Either it loads and there are no textures and all models are flashing “Includes: Houses/dogs/players/guns/ect.” Also there are triangles everywhere “flying”
-Completely locks down computer forcing me the manually restart “press power button”

==Links==
2-a:http://www.microsoft.com/downloads/details.aspx?FamilyID=2da43d38-db71-4c1b-bc6a-9b6652cd92a3&DisplayLang=en
2-b:http://www.dll-files.com/dllindex/dll-files.shtml?d3dx9_34
2-d:http://download.softpedia.com/dl/56d301344fd9a116032274f414ebfa08/49090a3f/100003545/software/os_enhance/directx_aug2008_redist.exe

==Drivers==
Nvidia: http://www.nvidia.com/Download/index.aspx?lang=en-us
Ati: http://ati.amd.com/support/driver.HTML

-If none of these work for you please refer yourself to this link and follow the simple instructions.
http://www.callofduty.com/board/viewtopic.php?f=52&t=39354

Please correct me on ANYTHING that is wrong or if i need to update
I dont take credit for any of these. When you thank me “if you do” remember your really thanking the original posters.

source

So you just bought Call of Duty 4 and all your friends are already rank 55 and you’re stuck at lvl 1, sucks huh? Or maybe you had to re-format your computer or something else like that and you lost your COD4 profile, since it’s not hosted on Activision servers, there is no way to get it back. Instead, why not just hack your lvl 55 rank? It beats spending hours and hours leveling up one by one. Here’s how to do it…

For PC

1. Download this mpdata file.

2. Go to Start -> Run-> Type regedit -> Hit Enter.

3. Go to HKEY_LOCAL_MACHINE -> Software -> Activision -> Call of Duty 4

4. Double-click codkey

5. Save the key in notepad

6. Replace the key with: DL2J8PY44Q22GE4888D2

7. Press OK and close regedit.

8. Navigate to your Call of Duty 4 profile folder (typically “C:\Program Files\Activision\Call of Duty 4 - Modern Warfare\players\profiles\your_user_name”)

9. Back-up and then remove all the files in your user name folder.

10. Place the mpdata file you downloaded in your user name folder

11. Open the COD4 MP game and check your rank. You should now be level 55 with all challenges, guns, and every camouflage unlocked!

12. Finally, in the game go to Options -> Multiplayer Options -> Key Code and type your original cd key you have saved in notepad.

There you go, you now have everything unlocked. Enjoy.

Not written by me Use at own risk. I’m not responsible