Distribute a presentation that contains only pictures of your presentation. ALADat now offers a free Slide Converter Wizard that automates this process for you. Hats off to Da Chief. You can use Adobe's Acrobat software to convert your PPT presentations to PDF files. PDFs can also include embedded fonts, meaning that it's easier to ensure that your presentation's appearance doesn't change depending on what fonts are available on the system where it's viewed.
Acrobat files can be very compact if created properly.
The free Reader for PDF files is probably already installed on many more computers than the PowerPoint viewer, so that's one less issue to contend with when you distribute your presentations. PDFs support hyperlinks, but at present there are no PDF creation tools that will convert your PowerPoint hyperlinks to PDF hyperlinks. Camtasia can also produce Microsoft and Real streaming video files. Another approach to distributing secured PowerPoint presentations is available from PowerPoint MVP Shyam Pillai. Pack single or multiple presentations into a single executable to be distributed.