Hi, It's a projection that came with the demo's of Chameleon. It's a Canada projection and it's written in epsg:form. I don't think it's an esri projection but I'll give your suggestion a try later on.
The funny thing is that it's in the epsg file of ms4w but not in that of mapserver for linux that I compiled on debian. -A
Where did the epsg number 42304 come from? It is from an ESRI project? If so you might try using esri:42304 instead of epsg:42304 epsg is an organization the publishes standard projections code and definitions. esri also has their own set of codes and definitions. There are separate files for these to lists specifically epsg and ersi. -Steve W.
