I'm guessing but I think it's a batch file for patching the sh3.exe which require the boot.ini to be edited independantly. He warned it won't make a backup of the sh3.exe so this should be done first. If this is XP-Specific I shall be giving it a try.
FWIW, I did the /3GB patch/boot.ini thing last night on my Windoze XP-Pro 4 GB PC as well as combining the .sdls from the FM Interior, Lifeboats and Debris and Animated Sub Pens mods and, so far, it has solved my CTDs. I even added a few new mods to my enormous list of enabled mods, so far so good.
I don't know if this has any effect on other programs yet, I will have to see.
Best Regards
Aces