To get started with JAsCo, we recommend you to read the following paper to get you started:
Alternatively, you might read the following three papers that cover specific topics of the JAsCo language in more detail than the paper above:
Afterwards you could install the JAsCo development tools for Eclipse and try the two example projects also available here. When you’re done, you can start following the online manual in Eclipse to make your own JAsCo artifacts. Please refer to the documentation section for more in detail information on the language and tools.
Alternatively, when you don’t want to use Eclipse (not recommended for starters), you can download the JAsCo kernel and command line tools.
Have fun!