Atari800Win PLus 4.1 Beta 7 is released. Atari800Win PLus is an Atari 800 emulator for Windows. With it, you will be able to run programs made for the Atari 800 computer on your PC. Atari800Win PLus will allow you to load Atari 800 programs emulating the disks, tapes, cartridges and executables used by that machine. You can even emulate input devices (joysticks, pads, mouses) with your own mouse.

Atari800Win PLus 4.1 Beta 7 Changelog:
- Removing unnecessary files. Candidate for 4.1 final version
- Removing the "race condition" in SYNCHRONIZED_SOUND (still unknown reason of its existence)
- The final amendment at SYNCHRONIZED_SOUND
- Proper color change when you change PAL <-> NTSC

Download: Atari800Win PLus 4.1 Beta 7
Source: Here