As A1 is not an Amiga (no Amiga Custom chip inside), it doesn't have this problem because every is emulated like on a PC... It's the same for Pegasos ... :rtfm:
And why do you want to use WhdLoad when you've got a real amiga with the real game ? :lol:
Do you know you can also use E-UAE (like on A1 and Pegasos) and get the use of your USB devices ?? :rtfm: