Patch for 3dfx Voodoo4 and 3dfx Voodoo5 cards: it allows running Contract JACK Singleplayer game demo on Windows XP based systems that have these 3dfx adapters.
Download (http://www.3dfxzone.it/files/download/video/3dfx/tnl_patches/Contract_JACK%20_Singleplayer_Demo_3dfx.zip) [1.07mb, zip file]