Is anyone aware of a special SDK that deals with programming addon modules for FS2K2? I've browsed thru the regular SDK but didn't find anything relevant.I created a simple dll that just monitors the keyboard and put it in the FS2K2 modules folder. Fs2k2 loaded it and promptly crashed so there's obviously something I'm missing.If anyone knows of any refrenece material, I'd appreciate hearing about it.Thanx,vgb

The netpipes sdk covers a little bit of interface info, but it doesn't touch on enough, and it only offers VC++ support.... So the short answer is no--the information you seek seems to be available to a select few, who've either reverse engineered MSFS, or have been given inside info on the calls and hooks needed.

Thanx John - I'll look closer at the netpipes and see what I can figure out.vgb

I would also download FSUIPC SDK - http://www.schiratti.com/dowson.html

Many of us are trying to steer away from FSUIPC, so as not to interfere with Pete's decision to possibly go payware. I've been looking for info on reading state data directly from VB code. This is possible, but the calls aren't documented. There was such a kit available for FS98, and I wrote a program several years back that ran in the background and interfaced directly with FS--I used it to manipulate the Autopilot, and to log my flightpath on a US map.... Sad to say, the calls changed in FS2000/2002.I have to say, FSUIPC's excellent SDK spoiled me, as it simplified the type of coding I had to do for the FS98 module when I converted it for 2002.