Multimedia Protector works with 2 different file extensions:
This is the file extension for the project file. This file includes all your project definitions. You may never distribute it.
The file icon is:
Example: course.mme
This is the file extension for the file you distribute in combination with the Multimedia Player. It is an encrypted database and includes all your protected files.
The file icon is:
Example: course.mmf
You can click on the file. It opens either Multimedia Protector (mme file) or the Multimedia Player (mmf file).