Server:
OS: Any platform with Java support (recommended platforms are Windows 2000/XP, Linux or Unix)
RAM: 128 MB
CPU: Any (500 MHz Pentium II class or faster recommended)
HD space: 100 MB (30-50 MB for installation and 50 MB for runtime files)
Other: Java 1.4 or newer

Client:
OS: Any
RAM: Browser dependent
CPU: Any
Other: (Graphical) Internet browser