Zapper (and TaZaR), I think it works like the mod to .j2b converter. You just drag the .ini over the dos program, it flashes up and then it churns a .j2e. A screenshot would be pointless.
*Note- I am crazy man who has no idea what he is talking about so please prove me wrong if neccesary BN.
EDIT- And the mod-j2b converter has been called a "program" as well. That main point was missing in the original writing. So your mythical 'program' and .ini method of BN are one and the same! LE GASP!