My friend has a windows Vista computer that I gave him as a gift. He has Sweet FX for Black Ops 1, 2, And World at War. His computer views Sweet FX as a threat however, and the only way we found we could use Sweet FX is if we turned off the Data Execution Prevention for BO1 and WAW. However, we cannot turn it off for BO2. Is there a workaround for this?

Add exclusion in Windows Defender? Vista is getting pretty old lol. Highly recommend 7 or 8.1.

Completely disabled it. Hes got Norton, and Norton would let it through. Regardless, Black Ops 2 will start up, then instantly stop responding. Deleted SweetFX folder to see if it would work without it, and it does. How would I fix the incompatibility with SweetFX? Reccomend older version?