This addin will insert all of the pictures in a directory as separate PowerPoint slides at the beginning, end or current position within a PowerPoint presentation. Each picture is resized as necessary to fill the slide as far as possible
Click here to download a PowerPoint addin. This should be placed into a suitable directory. The windows default is:
c:\Documents and settings\<username>\Application data\Microsoft\Addins
Then open PowerPoint and select 'Tools/Addins/Add New' and select the 'FromFolder.ppa' file that has been downloaded, and then after clicking 'OK' ensure that the FromFolder addin is ticked.
To add pictures to a PowerPoint use the new PowerPoint menu item 'Insert/Pictures from Folder'