WHDLoad permits games to run from WB on all Amigas with processor/operating system upgrades, where normally the game will only run on a setup like yours only, and usually gives the ability to quit back to WB! So it makes the game WB friendly on higher specced Amigas like the Amiga 3000, 4000 with CPUs like 030/040/060. Unless you have a HD, some fast RAM and KS 2.0x or above, it will not work on your 500.