Exit Codes:
-----------
 0 -- Success
 1 -- User abort (ie Ctrl-Q)
 2 -- CONFIG.DAT/NETWORKS.DAT not found, run in main bbs directory
 3 -- DMAIL.CFG not found, run DMCFG.EXE first
 4 -- Insufficient Memory
 5 -- EDITOR enviroment variable not set & unable to find Qedit/Dos Edit
 6 -- Subtype not set via /P command switch
 7 -- Outdated DMAIL.CFG, run DMCFG.EXE to update
 8 -- Unable to read drop file for ASV
19 -- Registered function only
98 -- Command disabled
99 -- Special
