Java processes are normally platform neutral. When applications or tools are written in pure Java, it is possible for such processing to be run on any operating system or hardware platform that supports the proper level of J2SE (Java 2 Standard Edition) required. From the software point of view, you can install the client on any operating system as long as there is a JVM implementation for it.

At this time, while the vast majority of the client FWD code is written in pure Java, there is a small amount of platform-specific code (written in C) used for character mode user interface processing, process launching, native memory access and native library calls. That platform-specific code is implemented using the Java Native Interface (JNI) and is often referred to as “native” code. A customized version of that native code is included in the FWD project. This code is currently compiled as a 32-bit or 64-bit shared library for Linux ( or Windows (p2j.dll).

Linux Windows
FWD has been successfully run on a variety of recent Linux distributions from Ubuntu, SuSE, Red Hat and CentOS. There are no specific dependencies on any particular distribution. It is expected that the native code could be easily ported to any UNIX-compatible system. Any Linux/UNIX operating system can be used as long as exists support of NCURSES, libffi and JVM implementation for it. The client will run on any Windows OS, from XP or later. Both Windows XP and Windows 7 are well tested.