No specific info about version 3.9. Please visit the main page of Leo on Software Informer.
Leo's RC Simulator is a full featured radio control models simulator.
Small flight simulator for PC with 3D acceleration enabled.
ORDERMAN Service Package is a free ms-dos utility.
Leo Backup lets you send the files to be backed up to LAN, FTP, etc.
Anime Zodiac Screensaver shows you the Zodiac signs depicted in anime manner.
An useful tool which enables you to convert between various video formats.