-f input movie
-s settings file
-o output movie (if you want to open the movie export dialog box, you should leave this blank.


QTHint.exe -f "X:\path\Movie.mov"

To open the movie Export dialog (this will allow you to choose an output movie file and you can add hints or re-encode the video to a different format).  Do not supply an output filename.
To add hints to the movie without re-encoding, choose "Movie to Hinted Movie"
To re-encode the movie, choose "Movie to QuickTime Movie"




QTHint.exe -f "X:\path\Movie.mov" -s "QTHint.rtm" -o "X:\path\Hinted.mov"

To add hints to a movie without opening a dialog box, you need a settings file (-s "QTHint.rtm") and an output movie (-o).
If "QTHint.rtm" does not exist, a hinting dialog box will be opened and then it will be created.