David Skelly wrote: reverse engineering it could be a breach of the licence terms But not in Australia: http://www.austlii.org/au/legis/cth/consol_act/ca1968133/s47d.html[^] and it refers to "adaptation" which is defined here: http://www.austlii.org/au/legis/cth/consol_act/ca1968133/s10.html#adaptation[^] at (ba), and that is a definition of decompilation, let alone reverse engineering in general. Of course the OP is in Germany, so that is irrelevant :-) Regards, Mark Hurd, B.Sc.(Ma.) (Hons.)

I like this solution! Even if i tried to avoid doing a cast, this one seems elegant to me. Thank You for that. But i'm still curious why this (OP) is not allowed ...