Well, somebody else might like the question answered.
What is the best method to transfer a file to an emulated Amiga in WinUAE ?
I usually use the Shared Folder. Windows sees it as C:\Users\Public\Documents\Amiga Files\Shared\Workbench - at least here. I'm using Amiga Forever, don't know if it's something specific for that or it's in all WinUAE installations. In the emulated Amiga it is seen as a "Shared" volume on WB.
Best regards,
Niels