The WHDLoad installers are designed to work only with non-cracked games, to stop people installing pirated games.
Because most games are simply standard disk images with one copy-protection track, WHDload images all the tracks except the protection track, and disables the check for that track in the game.
In other words, it doesn't solve the problem of satisfying the protection, it disables it completely - so a normal ADF would be just fine.
Not always the case, for example The Chaos Engine. I purchased the AGA version (mainly out of nostalgia for the original copy I had). Disk 2 is corrupt, so I went "looking" for a replacement adf for it. This ADF would not load at all into whdload.
