The old DOS version of our software disabled the "Abort, Retry, Fail" message by intercepting the internal DOS interrupt. Although you could do this with a .BIN file, you probably don't want to accidentally leave the interrupt vector pointing to a .BIN file that got unloaded (such as in the case where the FP program crashes). One way is to do this through a TSR, or even simpler yet, a "loader" program (written in C, assembler, or even Turbo Pascal). Basically the pseudo-code is as follows:

set_up_trap()
exec("main.EXE")
clear_trap()

This assures that interrupt vectors are released properly, even if the main FP application aborts abnormally. The actual program we used provided other utility functions, and used a series of .BIN files as an interface.