Atratus runs binaries built on Linux on WIndows. It is a system call translator similar to UML (User Mode Linux). It can run some games and busybox utilities.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.
