HTH Thanks a lot for answering. No rush but if you could remember a bit more, it would be nice. If true, what you are saying is quite groundbreaking as it is so far and to my (very limited) knowledge, totally undocumented that the size of the 32bit resource segments can be changed simply with settings. Does this hold true for any system or only for one running with a debug kit installed ? I have no clue of the impact, in terms of performance and stability, of running such a system with debugger but, at least for performance, maybe the impact is very low on a fast machine. From what you are saying, I understand that for knowing precisely what is in use for both 16bits and 32bits separately, the debugger is necessary. I have been on the page you quote and I ended up downloading some 18.000 9x related files with Web Reaper. That's a lot. I'll have a read at the specific ones you say, there aren't that many, and I'll try to get something usefull out of it. Thanks again. PS : I haven't seen any of the screenshots you speak about on the above quoted site but I might have so far missed them.