I thought it might be time for a little progress report again so you all have something to read. :-) After performing preliminary investigations of NAS and its source-structure the prospects of porting it look relatively good. The code itself seems modular enough that there will be no undue problem with re-directing it to AHI. Preliminary portability rating: 5/10 (where 1=almost unportable and 10=trivial to port) Investigations will continue. As for the quality of existing ports, I have not opted to begin by reading up on Amiga development and attempting to get up to speed with v50+ before writing test programs to ascertain the usefulness of the existing ports. Happy progress! -Peter aka. Archprogrammer Reality is for people who cannot face ScienceFiction. Only lefthanded people are in their right minds.