Packer Interface
Alice currently supports a file-based interface that is intended to allow packing programs to pack an upload mailbag automatically. No packer currently supports this interface. If you are writing a packer, you may want to include this interface, or supply details of your interface to the author so he can support it in Alice. It would be nice to have an Apple-Event based standard interface for packers, but no standard currently exists.
Alice launches the packer and tells it to open a parameter file, whose contents are as follows.

The file contains a number of lines, separated by CR/LF:
Operation ("P"=pack, "D"=unpack)
Filename of the packed file
Filetype of the packed file
List of files to include in the packed file (one per line)

Example:
P
224346.REP
zBIN
224346.MSG
I Love
EDDA