macros under 'configure tools'

I'm using BCB3 and  want to launch a hex editor on the current projects exe.
I can't figure out the correct macro(s) to pass in BCB 'Configure tools'
options.  (The hex editor supports passing the file name parameter OK under
a dos prompt.)

I've put $EXENAME as the parameter but the hex editor launches with no file
loaded.

--
TIA

Dean