On Tue, Mar 27, 2001 at 09:26:21AM +1000, Glenn McGrath wrote: > New algorithms can be added very easily, so there wont ever be a big > hassle retooling to support a new compression program, just add it to > dacts toolchest and your done. But if you add a new compression program, you can then not decompress with older versions. There's still an upgrade problem, it's just hidden, which might be worse. Richard Braakman