AppleWin runs Apple II programs from disk images, which are single files that contain the contents of an entire Apple floppy disk.
Starting an Apple program is a simple two step process:
After booting, you may use the emulated Apple exactly as you would use a real Apple.
Of course, using an Apple is not much fun unless you have a library of Apple programs to run, so you'll probably want to get some disk images right away. The easiest way to do that is to download images from the Internet; see the Resources section for more information. Or, if you want to learn more about creating your own disk images, see the Disks and Disk Images section.