You can set an option so that a presentation
automatically plays when it’s opened, or you can require that a
presenter or user click the Play button in the toolbar to start
the presentation.
In PowerPoint, open a presentation (PPT file).
From the Adobe Presenter menu, select Presentation Settings.
Click the Settings tab.
Select Auto Play Presentation on Start. (By default,
this option is selected.)
If this option is not selected, a presenter or users must
click the Play button in
the toolbar to start the presentation.
Click OK to close the Presentation Settings dialog box.
Your changes will be incorporated into the published presentation.