The utility was originally programmed and released by MadBoris, for the game Supreme Commander. I just have simply tweaked the program to work with Stalker-CS (for all versions). It is a good practice to specify large-address-aware for 32-bit applications (such as Stalker-CS), by using the linker flag /LARGEADDRESSAWARE, *even if the application is not intended for a 64-bit platform*, because of the advantages that are gained at no cost. (Info From Microsoft) That is what this utility does; it adds makes Stalker-CS 'large-address-aware'. However. you also need to enable the '3gb switch' (except in Vista or win7 64 bit).