The emulator I found uses the F9 key to exit ... perhaps someone can write a wrapper to substitute the F9 keypress with an ESC keypress? It does not bother me since I can reprogram by keyboard encoder to the specific key mappings required by the emulator.
Anyway, for general information ....... I found this site which indicates many Atari800 emulators.
http://atari.ksiders.tzo.com/a8emulators.htmlI noticed that the third choice in the list "Atari 800 Ver 2.0.0" indicated a new version was released Jan 2006. I clicked on the windows image and when the next site came up, I scrolled to the middle of the page and clicked on the 2.0.1 version and then downloaded the "atari800-2.0.1-windx.zip" file.
** You however, will notice there is now a platform independant version which was just release a couple days ago ...... v2.0.2 .... I have not tried this version since it was not available 4 days ago when I originally did my download.