Edit your AIDT4 desktop or start menu link. It should look
 like "...\launch.exe". Now put the word wizardmaster one space behind
 it: "...\launch.exe" wizardmaster.
 This will enable a hidden cheat menu in the inventory screen. You can warp
 around all the rooms of the game, get into godmode, have unlimited medikits and ammo.
 If you replace launche.exe with alone4.exe, the game will start immediately without
 the start menu.

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 How to get infinite saves:

 As Carnby, when you leave the lobby of the manor, a cutscene begins and
 you meet Edenshaw. At the end of the cutscene he gives you a charm of saving.
 If you save immediately after the cutscene ends, then reload, the cutscene
 will begin again. Repeat. You will gain 4 saves each time.

 Collected with the help of

 TM13h, themadman13h@aol.com