I would appreciate hearing from anyone who has succesfully
applied the instructions in Panorama Publisher for launching
external applications from within an SGML document.
Apparently, the four pieces needed to make this work are:

1. An entry in the Panorama SETUP file for the application.
2. A notation declaration for the filetype within the DTD or declaration
subset of the specific document.
3. An entity declaration for the external file.
4. A entity reference within the document text.

I've followed the instructions, but no luck so far.
There are no indications as to where the externally launched programs have
to be on the local system (in the same directory?), but even taking that
precaution, I've had no response from my external applications.

Any responses (direct or to the listserv)?

Timothy Young
Archivist
Beinecke Rare Book and Manuscript Library
Yale University
New Haven, CT  06520
(203) 432-8131