reading flight params from FS98

Does anyone know how to read the flight data from flight simulator 98? I want to make a program that runs simultaneously with FS98 and use it as somekind of BLACK BOX.
Do you have to know where in memory these 'flight'variables are stored, or is there a simple way to 'link'to FS98 and read them out? It seems that there are people except for the makers themselves, who know how to make programs for FS98, like Flight Director.

I hope someone knows something about FS98.