Vista - Call of Duty 4 Problem

I have a new HP Touchscreen with 4 megs of ram, dual core, and windows vista 64. I load call of duty and it loads but will not run and says their is a missing dll file. from direct x. Obviously Windows vista 64 has direct x 10, and COD4 runs from Direct x 9. When I go to install direct x 9 it says that I cannot install due to another application of direct x running. HELP?

Have you tried installing the latest DX? Latest DirectX Update

I did install the latest update and it gave me the same error. Unable to install due to direct X already running.

What is the missing dll file called.

mss32.dll

You will have to search on the COD disc for that dll file and put it in the main folder of COD.

Yes.. there are a few posts about this if you google it...I had it happen as well... I cant really remember what I did to solve it.. but... Make sure you install in an administrator account, make sure you AV is off when you install...install the Patch as well.. ( I think its like 4.16???) I was getting the error even though the DLL was in the main folder....Try right clicking the game icon and running as administrator....I still have to do that with a few games and RIVA tuner.

By the way.. if you have updated DX..it should be backwards compatible so I dont think it should be a problem...install the patch before you play the game... right after installing the game.