If you want to convert PPT (Powerpoint) to SWF (flash) using free tools, this tips should help you. The idea is using The OpenOffice basic macro.

What I do is convert the PPT to .swf with openOffice. I need to do this from the command line for my purposes, but you could do it from the GUI as well. I export each slide to a separate .swf, as the .swf’s open office creates are a little wonky and difficlut to navigate. I then use SWFCombine to stitch the Openoffice generated .swf’s back into a single .swf

Both programs are free and run from the command line. For the openOffice part, you’ll need to write a Macro (in basic) and a bat or shell script to run it.

The nicest part about using openoffice is that it maintains vectors from the ppt.

Thanks to Jay Charles for his post at Flashcomguru forum.

More here: http://www.flashcomguru.com/forum/forum_posts.asp?TID=1557&PN=1