JagoClient is: a SGF (Smart Go Format) go game viewer; a point to point go player; and an IGS client
The program has been written in Java, which means it is available on all modern platforms. It will even run on an EPOC handheld. JagoClient has been translated into a lot of languages. Your local language will be used automatically.
Jago is freeware and open sourced.
These details are provided for information only. No information here is legal advice and should not be used as such.