1)   MS Powerpoint Join (Merge, Combine) Multiple Presentations Software 7.0
Combine two or more Powerpoint files into one. Select the files that need to be joined and this program will create a new Powerpoint file consisting of all the slides from each file. You must have Powerpoint installed on your machine.

 2)   MS Powerpoint Print Multiple Presentations Software 7.0
Print many MS Powerpoint files without having to open each one. Powerpoint 2000 or higher required.