This is an unofficial patch for LBA1\Relentless made by FunnyFrog. This patch fixes the few issues that LBA had with windows. Now you will be able to run LBA from within windows (you still need to install DOS drivers).
This patch also has the ability to disable the "wall hit", if you disable the "wall hit" you are actualy cheating the game.
Other methods to play LBA1 in windows are either using DosBox or LbaWin.