How does the latter half of this work? Specifically, if I haven't modified my app to incorporate your service, how does running it trigger the updater? I assume some sort of wrapper executable?
If the above is correct, how much overhead does that wrapper add? What happens if an update is available, but the user's internet connection is slow/down? Will my app be allowed to run while updates are checked for in the background, and if so, do you fire a message telling the user once an update is known to be available? Or just silently restart it?