The ProShow Blog

Tips, tutorials & inspiration for making slideshows

The Anatomy of a ProShow Slideshow

We make a lot of slideshows here at Photodex, I mean a LOT! With all those creations you can quickly find yourself with a pile of unorganized show files. Let’s take a closer look at the files that make up a ProShow slideshow, including which are safe to delete and which you should keep.

The PSH File
The basic element of any ProShow Gold and ProShow Producer slideshow is the PSH file. This is the file that defines your show. Without it you don’t have a slideshow. Do not delete PSH files unless your intention is to wipe shows off your system. If you’re working with ProShow Projects, which contain multiple slideshows, then you’ll also have PPR files. These are the files that reference your shows in a project.

Show Content
An equally important part of any slideshow is your content. The image, audio, and video files added to a show constitute its ‘source files’. You want to make sure these source files are in a good, permanent, location before adding them to a show. ProShow uses these files from their original location on disc, rather than creating a duplicate each time one is added to a show. Moving source files around can cause missing files in existing shows.

If you should find that files in a show have gone missing, don’t worry. There is a “Find Missing Files” feature in ProShow to help recover lost content, and it’s really easy to use. If you need to move an entire show to a new location, use the Tools > “Collect Show Files” feature. This puts a copy of everything you need for that show into a single location of your choice.

Show Backups: BAK, B01, B02
Perhaps the next most important set of files for most people are the automatic PSH backups. These lifesavers can be found in the same location as the associated PSH file. They have the same name as that main show file but use extensions BAK, B01, B02, etc. and so forth.

If you ever find that a particular show cannot be loaded, or you simply want to restore it to an earlier variation using Tools > “Revert to Backup”, these little gems will make that recovery process quick and easy. They’re typically very small, like the PSH file, and should only be removed when completely deleting a show from the system.

PXC Cache File
One file that can become quite large is the PXC cache file, which shares the same name and location as the PSH file with which it is associated. Cache files work behind the scenes to help you open and access your shows more quickly. Once a show has been archived or is no longer being worked on, you can delete the cache files to save room on your hard drive.
Generally speaking, a show that is still being worked with should not have its PXC file deleted. That said, deleting a PXC file will not damage the associated show. You’ll just find that it takes longer to open that show next time you’re ready to make changes or create new output. If you’re working with ProShow Projects then you’ll also have PXP files, which should be treated similarly.

These are the main files associated with any show. You may also notice Slide Style (PXS), Transition (PXT), and other supporting files or folders in a variety of locations on your system. To avoid undue complications, these files should not be manually moved or removed. Use the Tools > “Manage Effects” dialog within ProShow if you need to delete a slide style or transition.

Have any other questions? Let us know in the comments below!


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As head of the Quality Assurance team at Photodex, Joshua oversees the process of making sure ProShow is fully operational. He enjoys sports, science fiction, spending time in Austin with his family and knows how to grow one heck of a beard!