Areas:
CPM:		General area for CP/M (NOT file-transfer,NOT games)
MSDOS:		MSDOS-related programs
SYSLIB:	CPM-based SYSIB3
GAMES:		all games - any language [except C-language based]

MODEM:		File-transfer program for RBBSes, BBSes
KERMIT:		File-transfer program
TOPS:		TOPS-20 programs to handle CP/M stuff
ZCPR:		ZCPR2 for CP/M

CC:		any CP/M related programs written in C
SMALLC:		Ron Cains small C

Rainbow:	Rainbow CP/M support
MS-RB:		Rainbow MS-DOS support
FIDO:		Rainbow [/MSDOS] based BBS system-software

DIR CPM:<CR>	will give you list of all stuff in area CPM:
DIR CPM:*.COM	lists all COM-files