On every reboot I get a rash of "Windows Command Processor has stopped working" popups; four or more.
I'm fairly certain that two of these are related to Chrome Desktop Application shortcuts. The commands issued are of the form:
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --app=http://www.zzz.co.uk/apps/tracking/?parcel=1234567890

However, if I close the Chrome Desktop Shortcut window, and start it again, I don't get the failure. So far, I haven't found any way to cause the popup on demand.

Others popups may be caused by stuff in my startup folder (wherever that's gone) or programs started automatically at startup by the scheduled tasks mechanism (or whatever that's called these days).

Any ideas what might be going on, and how to fix it?