To autorun power point files there are two crude methods.....
1) Convert it to *.exe or *.swf using Powerconvertor you can run the exe as indicated above.
You have to run the *.swf as follows...
2) In microsoft frontpage create a new HTML cdocument and insert a plugin and select the source as the *.swf file you have created.
Now save the html file as index.html. Now to auto run copy and paste the following into notepad and save it as autorun.inf
[AUTORUN]
open=start/ index.html
icon=icon.ico
that should load the html file you have created.
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You can download a demo of Powerconvertor here..
*www.presentationpro.com/products/PowerCONVERTER.asp
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The other method is to export all slides of a PPT presentation as *.gifs and using irfan view create a self running slide show EXE file and autorun the EXE file as indicated above