1)   Desktop Server 4
Desktop Server is a multi-user/multi-station Linux operating system that allows up to 10 independent users, screens and keyboards to work wfrom just on PC.

 2)   admin-linux-2.6.10 1.0-65
Admin-linuX is a pure linux kernel 2.6.10 based operating system that installs itself on ram-drives during boot. The 32 MB iso unpacks to 64MB RAM. Admin-linuX contains the most common network+disk drivers to avoid post-install configurations.

 3)   DiscoverStation 4
An affordable, worry-free management tool. Includes print control, time-management, privacy protection, web filtering & statistics. A simple, stable and reliable solution for libraries, schools, & any public computing environment.

 4)   ClonOS 1.0-1
ClonOS is based on a pure linux kernel 2.6.10 based operating system that installs itself on ram-drives during boot. The 32 MB iso unpacks to 64MB RAM. ClonOS contains the most common network+disk drivers to avoid post-install configurations.

 5)   Userful Desktop Swordfish 291
Userful Desktop is a Linux OS that comes complete with over 40 applications in 30 languages. Userful Desktop can power up to ten end-user workstations with a single PC and are entirely customizeable by a remote interface.

 6)   Userful Live CD 2008-03-20
Userful's Live CD is a simple and free way to temporarily transform your dual-monitor PC or laptop into a dual-station PC! The Live CD includes the operating system, web browsers, Open Office, and multimedia applications.

 7)   Userful Multiplier 317
Userful Multiplier Software turns one computer into ten using extra video cards, keyboards, and monitors. Installs on most popular Linux distributions (RedHat, Novell/SuSE, Fedora, Mandriva, Xandros, Linspire, Ubuntu, etc.).