Tri-Bingo 3.1 - Upgrade Instructions For a regular Non-IBBS upgrade, copy the *.exe, *.slb and *.hps files from this packet into your Tri-Bingo directory. If you want to turn off the Sysop Feedback feature, create a file called NOFEEDBK in the Tri-Bingo directory. When this file is present and a caller selects Sysop Feedback, the caller will be shown a screen instructing them to leave a message on the BBS. If you are interested in setting up for InterBBS play, read the INTERBBS.TXT file for instructions for Upgrading and Setup.