As in the case of two deaf-mutes, unable to "sign" to each other, the easiest way to pass data between apps (without knowing the nitty-gritty, low-level details) is to leave notes. With Windows apps its easy to clear the clipboard, post a message there and hope the other app picks it up before yet another app (or the user) overwrites the information. With DOS apps running under Windows, I believe you can post a message in the master environment table and pick it up with an app in a different window (I haven't tried it yet. Mike Lacey could probably resolve the question of whether Windows maintains separate master environments for each window or just uses local environments).<br>
The big problem comes when you try to interface Windows and DOS. DOS apps have a hard time reading the clipboard and Windows apps pay little attention to the DOS environment.<br>
There is probably only one sure way to allow DOS and Windows apps to interact; leave notes on a hard drive.<br>
Allow the apps to post instructions to each other.... read once and delete (or over-write).<br>
<br>
I hope I haven't sent you in the wrong direction. I have a pretty good grasp of QB45's abilities and limitations but have a profound ignorance of the methods you plan to use on the other end.<br>
<br>
Good luck. You may be trying to set a nail with a screwdriver; it CAN be done... but you might find an easier way.<br>