How to import a PowerPoint presentation into Windows Movie Maker?
Summary: 2 ways to make a video from PowerPoint slides using Windows Movie Maker, import PowerPoint presentation to WMM.
Some friends asked me how to import a PowerPoint presentation into Windows Movie Maker, as they want to transfer PowerPoint to video that can be played on video player or be shared with others easier.
Actually, we can not import a PowerPoint file into Windows Movie Maker directly, for Windows Movie Maker's supported input files are video, picture, audio or music, so we have to figure this out with some special methods.

1, Save each slide in PowerPoint presentation to picture.
Open PowerPoint file, go to File->Save as, on the "Save as type" option, we choose the picture formats. There are 6 picture formats you can choose: *.gif, *.jpg, *png, *tif, *bmp, *emf. Any one format would be ok. Then click "Save". A prompt will pop up, we choose "Every slide". Seconds later, a hint pops up "Each slide in your presentation has been saved as a separate file in the folder: ***".
Open the folder, you can find all the exported pictures.
Run Windows Movie Maker, you can import all the pictures and edit them, then generate a beautiful video.
The disadvantage of this method is that it can not keep the audios and animations in original PowerPoint presentation. To avoid this, I'll show you the second method.

2, Convert PowerPoint presentation to video file.
Don't make fuss about this topic. All we need is this professional tool:Moyea PPT to video Converter. It can convert PowerPoint to almost all popular video formats like WMV, MPEG, AVI, etc. It retains the structure of original PowerPoint, keeps all delicately designed elements in PowerPoint.
You have to do only three steps:
1, Import PowerPoint presentation
2, Choose output file format
3, start conversion.
A few minutes later, the converted video comes on earth.
Now, you can import the video to Windows Movie Maker and edit it.

The Second method is definitely better than the first method.
Tip: By the 2nd method, Moyea PPT to DVD Burner
can convert PowerPoint Presentation to video too, it even provides more functions like burn PowerPoint to DVD.

For convert ppt to dvd using Presentation to Video Converter.I told about this prog.

I like Presentation to Video Converter ( www.geovid.com ) too

Convert PowerPoint to WMV: Wondershare PPT2Video

Wondershare PPT2Video is a handy tool for converting PowerPoint presentation to video of up to 130 formats such as AVI, MOV, WMV, MPEG, FLV, 3GP and HD videos of excellent quality with all the original animations and sound effects retained.

Link: http://www.ppt-to-dvd.com/ppt-to-video-overview.html