Incorporating BGI fonts in EXE file

I am trying to incorporate BGI fonts in a Turbo Pascal 7.0 program
by creating OBJ files from the CHR files, linking them into the
program, and registering the linked-in files with RegisterBGIfont
before using them in the SetTextStyle procedure.

This works well with TriplexFont, SmallFont, SansSerifFont and GothicFont
(the fonts listed in the Manual), but I cannot get it to work with
BoldFont, LcomFont, ScriFont, SimpFont or TscrFont.

Helpful suggestions please?