AppleWin is designed to run Apple II programs in most versions of Windows. It was initially released in 1994. In fact, the first version – designed by Mike O'Brien – was announced before Windows 95 came to life. The emulator is open source and comes with basic requirements. Written in C++, it requires Intel 486 or a newer CPU to run.
AppleWin is still being maintained today. It runs with DOS 3.3 and ProDOS images, but it can also handle copy protected software on disk images. In terms of extensions, AppleWin works wonders with .WOZ, .NIB, .BIN and .DSK, among a few other options. Images also come with an extra option to write protect them – they must be mounted as read-only though. Since the emulator is given as a freeware program, it is obviously available for free and can be easily found over the Internet for a download.