It ran on my XP 32bit box with 3GB RAM but it would crash when the program tried to address more than 1GB RAM.
The real trick is that you need a 64bit OS.
I did manage to sort out a work-around until I upgrade the OS on that box. Installed 4 GB RAM then did this work-around: http://forums.station.sony.com/ps2/inde ... lay.52443/
After doing that it now runs stable for hours on end. However it just runs soooo much better on my other box so I rarely play on that XP box anymore. If you don't understand the details of what that work-around does then know this: You absolutely need 4 GB of RAM to use it or you will have other, worse, problems.
Your three options are:
- Run a 64bit OS and then you'll be ok with 3 GB RAM.
- Upgrade to 4 GB RAM and if you are running a 32bit OS do the work-around.
- Live with it crashing every 5 to 30 minutes