Customised 'exittc': removed 'Exit to Prompt' option (see attached image).
On ubuntu system, installed FLTK library and dependencies.
downloaded 'exittc.fl' file from https://github.com/tinycorelinux/fltk_projects/blob/master/exittc/exittc.fl (https://github.com/tinycorelinux/fltk_projects/blob/master/exittc/exittc.fl).
Compiled ‘exittc.fl’ with following command, it created 2 files ('exittc.cxx', 'exittc.h')
fluid -c exittc.fl
Executed following command to create 'exittc' (an executable file)..
fltk-config --compile exittc.cxx
Replaced the existing 'exittc' file with new one (Location: "TinyCore.iso>cde>optional>Xprogs.tcz>usr>local>bin>exittc")
It is working file, now there is no option for 'Exit to Prompt'.
(http://forum.tinycorelinux.net/index.php?action=dlattach;topic=20388.0;attach=4694)
The only issue is that size of new file is about 500KiB, but the size of original was just about 8KiB!!! (any recommendations)