Does anyone know where I can find the source code for the last version of FDSConnection? I found ver. 1.1 buried within the downloads of GlassFlightDeck at the following: http://glassflightdeck.cvs.sourceforge.net/viewvc/glassflightdeck/FDSConnection/ I think ver. 1.4 is the latest. Why am I interested in this? At this point I can’t really say other than, as I have launched on an effort to understand CFS2 on a more technical level, I want to know what can be done. Also, I guess part of it is that I was thrilled when I discovered that I might could contribute via the dll module route with some C code – "Gods language" and all that. Even if its all been done (FSUIPC, FDSConnection, and that other one?) I still plan on looking further into how these reads and sometimes writes are done. I have noticed the thread here "How to Make dll’s" and am fiddling with the code Rhumbaflappy posted. Also, I have been studying the FS2002 panels and gauges SDK. If there is other information the guru’s here think I might should look at, that too would be greatly appreciated. And while I have your ear, much thanks to both Arno and Rhumbaflappy. On my many Googles of this dll module thingy, it often happened that one or both of you provided the help/answers. Your valued contributions to the FS world precedes this posting. On a lighter note, Rhumba, maybe I should be working on land-water masking – huh? And don’t be impressed as I had never heard of them a month ago. Sam aka: "Ali Cat"