A time lapse movie is a movie put together from images taken with intervals between the exposures, anywhere from seconds to minutes. The movie will playback in fast forward and show the progress of a scene in time compressed form. digiCamControl can produce time lapse movies. To generate the movie itself there a plugin for it Menu->Plugin->Tools->Create movie
If the software is set to start when windows start and from any reason the pc will restart the software will continua a started timelapse after restart