I kinda doubt those of us who aren't programmers can. Sounds like he cracked open the game's code to do that.
Of course, like I said a couple pages ago, sure would be nice if a code-savvy person could create a mod to disable autosaves and share it with the rest of us...
Zipped and uploaded to nexusmods with instructions. Had to finish the game first
This isn't compatible with IE Mod, since it includes a modified version of the same game file. It'd be pretty easy for its author to add this in there though.