I have been asked to work on a legacy program, where a
(small) main program calls, via Exec,
a (much larger) program. Both are protected mode.

TD286, TD386 or TDX will not trace into the protected program,
they execute it in one shot. If it crashes, TD386 will disrupt the CMOS.

I am running in Win95 MSDOS mode. I have used all the debug and map
options.

Can this be corrected?

Are there any settings that will allow tracing into the Exec'd program?

Any help/suggestion/advice/hint will be greatly appreciated.

If the exec'd program *needs* the small main program, can you duplicate
the stuff needed via command line parameters in the exec'd program with
a small rewrite.

You could also try changing the exec procedure to run the exec'd program
under the de{*filter*} and start the small main program without using the
de{*filter*}.

--
Pedt Scragg