On Sat, Mar 25, 2017 at 6:40 AM, Ian Kelly <ian.g.kelly at gmail.com> wrote: > If that's what's happening it would be a bug. Are you sure that the > other program isn't simply crashing or otherwise failing to complete? > Or possibly is running asynchronously. Is this a GUI app? A lot of Windows GUI programs don't wait when you invoke them. ChrisA