User's Guide - Key Concepts
Internal files are files that your AutoPlay application accesses as internal references. At build time these files are compressed, encrypted, and built right into the application's DATA folder. For security reasons, the filenames are also replaced with random gobbledygook (or "munged") to make the files a bit less accessible to the user.
Because they're only accessed at build time, internal files can be located anywhere on your system.
Of course, having your project depend on files that are scattered all over your hard drive could lead to heartache if you ever accidentally deleted or moved one of the files...and it would be a headache if you ever needed to transport your project to another computer.
AutoPlay solves this by automatically copying internal files to your
project's Resources
folder. By default, any internal file that you select using the Locate file (
) button is first copied into the Resources folder,
and then referenced from there. (more info)
This is much safer than referencing the original files. Even if you move, delete, or modify the original file, it won't affect the copy that was used in your project.
And, since all of the internal files that your project needs are located in the Resources folder, you can easily move your project to another computer, just by moving the project folder. (The Resources folder is stored in your project folder, so when you move the project folder, you're moving the Resources folder as well.)
Next: External Files