Game error

Ok, I keep getting the same error trying to run Battlefield 1942, Battlefield Vietnam, or Halo: The instructions at "0x0172d6b2" referenced memmory at "0x44892430" The memory could not be read.
WTF is wrong? And before you say "buy the real thing" I have the BF disks sitting right next to me.

how old is your system?

try some different drivers for your VGA and mobo. If that fails, move your RAM into a different slot or if you have a custom rig, lower the timing.

if that fails: nuke your OS and reinstall clean. This will isolate the problem, at least. Get a drive imaging program and save your current state so if it happens again you can go back.

this is just a generic error. I got it for everything I've listed as a problem - personal experience.