when i try to install the client it stops and says random things like

 

cannot access the file 'C:\Program files (x86)\CallogDuty-ModernWarfare3\zone\english\code_post_gfx.ff.deco' because it is being used becuse another program

 

~Recon

Simple fix but you must follow exactly what i say...

1-Download the IW5M client from here http://iw5.prod.fourdeltaone.net/files/iw5m-client.zip and extract it to your desktop

2-Go to your IW5M folder and copy mss32.dll and paste it into your desktop

3-Now in your desktop, launch the updater (LaunchIW5M.exe) and it should download files and folder and it should appear on your desktop

4-Now Copy all the files and folder in the desktop and paste them into your IW5M folder

5-Overwrite files if prompted

6-Now run the game