Hi, thanks for your answer. I have also found this: http://www.approximity.com/rubybuch2/node176.html This shows, how to use ruby-code in C. But not sure, if this is the wrong direction. Maybe it is very slow. Well the problem ist, that I want, that many people have fun and use with my code. That they can reuse it. Maybe this is with shellscripts very easy. There is no binding needed. On the other hand, it is not very integrated for other developers. The possibilities are limited. Greetings Mike