Double-clicking a linear audio .wav file (or hitting the Encoder button with a .wav file currently selected) will open the mp3PRO encoder window with appropriate default settings for generating an mp3PRO digital audio file from this particular source.
The resulting mp3PRO output file will automatically be stored in the same library folder as the .wav input file unless you disable the Add To Library checkbox in the encoder window. Please note that the free version of this software exclusively supports encoding 44.1kHz stereo linear PCM files to 64kbps stereo constant bitrate mp3PRO files.
For more information please visit Coding Technologies on the internet.
See also:
Working with .mp3 files