IBM and Compatibles: WINDOWS: EXCALIBUR
Additional Notes:
Excalibur BBS was an entirely GUI (graphical user interface) BBS system developed by Excalibur Communications. It requires the users to have a special GUI client to access the system - either dial-up or telnet. Operations ceased in 1999. - thedirectory.org
excalovr.zip () Overview of the features of the Excalibur BBS
cwolfe.txt () Information on Excalibur Software as of July 4, 2006, by Christopher Wolfe