Oblivion Script extender source
The Oblivion Script Extender is a Game modification for The Elder Scroll 4:Oblivion that patching the game executable directly in memory allow to greatly extend his functionality and fix some engine bugs
Original Creator and Contributor: Ian Patterson (ianpatt), Stephen Abel (behippo), Paul Connelly (scruggsywuggsy the ferret),Timeslip, The J, DragoonWraith, SkyRanger-1, shademe, kyoma
Official Site: http://obse.silverlock.org/