QRZ! Ham Radio.  May 1996.  Walnut Creek CDROM.
Packet BBS system software
path: \files\pbbs 
-----------------------------------------------
Name           Size      Date    Description
============ ========  ========  ==============
aiz451.exe     318564  08-14-91  Packet Radio BBS by SV7AIZ v4.51
diebox19.zip   442780  03-11-94  NORD><LINK DieBox (TheBox) v1.9 - DF3AV
io51.arc        15218  04-18-89  COM-port drivers for CBBS
iosc51.arc      52025  04-18-89  COM-port drivers for CBBS, sources
logcon.zip      31844  12-08-92  G1NNA PBBS log file analyzer - G8EIA
nna201at.zip   296574  12-23-92  Packet BBS v2.01 (AT version) - G1NNA
nna201xt.zip   297941  12-23-92  Packet BBS v2.01 (XT version) - G1NNA
nnaup201.zip   342784  12-08-92  Packet BBS v1.12 to v2.01 Update
nnav202a.zip   416640  01-25-93  Packet BBS v2.02 (AT version) - G1NNA
src60.arc      108683  04-18-89  CBBS Packet Radio BBS v6.0 sources