Slick, the program thing you link to has a lot of options, but I didn't like it much. While it has a negative acceleration thing to play with, the way it worked didn't work out for me too much.
Every time I changed a setting with that program, it would change my resolution to 1024x768 for no reason, and it was just sorta meh. It has an option for using 4 cores, which the game already does...so it has built in placebos.
On the other hand, if anyone is wanting to play with Negative Mouse Acceleration by turning it off, the following link is a program that does ONLY that.
It also allows you to change individual settings, such as infantry, atv, tank/turrets, and air vehicles separately, which is fucking awesome.
It also allows you to change whether you totally turn off negative mouse acc., or just lessen it.
If you haven't fucked around with negative mouse acceleration because you didn't wanna screw around with so many settings manually, definitely try out the link below.
http://forums.electronicarts.co.uk/...-tool.html