Few ways to do so.
A quick way is to save it as PowerPoint show which will start the slideshow
immediately. Of course, this doesn't provide any protection since you can
rename the extension or open the .pps from PowerPoint itself.
If you are using PowerPoint 2002/XP and above,
you can set password to protect your presentation from modifying.
Go to Tools > Options > Security. Set your password there.
If you are using PowerPoint 2000 and below, this feature isn't supported.
You can though, embed your presentation into MS Word or Excel.
Check this out for more information:
"Password protect a presentation"
http://www.rdpslides.com/pptfaq/FAQ00038.htm
Does that help?
--
Microsoft Certified Office Specialist (PowerPoint)
Site Updated: March 29, 2006
Added Animated Show
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