I think hardtosolve is responding to happy123. The file is just what they said - to make hacks. As it is, it's just an outdated Game.exe that is more human readable than the normal packed version - no hacks. It wont make outdated .dlls work, and you can't launch it by double clicking- you launch it with the launcher which will immediately update it to the current normal packed version. It's for educational/informational purposes only at this point.
*I was able to get both links to work eventually, but it took around 100 attempts. The site is hard to reach in general for me though.
The second link is a slightly newer file than the first(.121 vs .115 i believe), but they are outdated now as the current is .3344.