ItExamPractice is a .NET Web application for sites offering online exams/tests. Works in MS.NET and a free (Linux/UNIX/Mono) environment. It helps communities collaboratively build exams and guarantee the freedom of the information for use by others.
A medical information system for Windows-based systems (95-XP/CE/PocketPC) based on Open Source platforms
A Medical Information System (MIS) Application Server based on Web Services and J2EE and administrative tools (Plugins for Eclipse,...)
A C# implementation of LOGO which allows to reproduce many real world (complex) phenomena governed by local rules like traffic jams, gas diffusion, aggregation and percolation, ant systems and biological systems in general.