There are two download options, one installer package, and one for a zip folder.
The download options are;
The installer package (1.0 MB)
This is used to install DML anywhere on your PC. On any hard drive or thumb drive and run from there.
When installing you will be asked for the install location. The default is C:\DML
The DML zip folder (937 KB)
This is the DML folder zipped. It is to be extracted to wherever you want to run it from.
This could be any hard drive or thumb drive. As long as the computer the drive is connected to is running Windows 7 or later, DML will run.
Once extracted, this main DML folder contains everything you need to run your movie library.
Download one of the packages