"Lic. Edgar J. De Cleene" <edgardec2001 at yahoo.com.ar> wrote:

> Fellows Squeakers:
> 
> I trying to build a Help system for Squeak, and I saving "cards" as
> compressed objects (and saving that to somewhere for later use).
> 
> Works as long how images are compatibles.
> 
> Backwards compatibility is a long talked issue in Computers, so I wish to
> know how could be a Smalltalk / Squeak smart solution .

ImageSegments have been around for a while and are somewhat backwards
compatible.
Karl