yes, I called the support... and it doesn't suprice me that they dont want to give the documentation.

I suppose they have a point with not giving their competitiors the oportunity to easier steal customers... or something. But from my point of view it should be better to give users the oportunity to build applications around the file format and make it a natural part of the workflow. I think that it's nothing that is more depressing than programs having formats which makes it almost impossible to use other programs as a complement.

Reverse engineering isn't worth it in this case. There are ways to get the information to XML and stuff from the indd. But the drawback is that it demands more work from the guy sitting with the InDesign program.

but thanks anyway for your tips.
/pir