it's not a program, it's just a small function you can enable via registries, not sure if it's removed or something tho, it's doable in Ugly ***gy Waggle Dingle Berrys i kno for sure.
Pretty much it shows a list of players and mobs on map, it shows the player's details in terms of IP, HP, Ping and FPS, it shows the current Special Transformation value, it shows the Sent and Received packets and a little more stuff.
It does get in the way, but it's useful in some ways, like surveying for mob HP and a player's ping.
edit: 4got about censoring l0l.
anyways,
To enable Debug text:
Open Regedit, just go to "Run" and type in regedit.exe or however you want to open it, it's just how I do it.
Go HKEY_LOCAL_MACHINE>Software>(For windows vista and above it's wow6432Node I think, so just go there if you can, otherwise just skip this)>N-LogSoft>bots
Then on the left section of regedit, you should see a list of 20+ registries. Just look for "Debug Text Active", double click that and change the Hexdecimal value to "1", which activates it, now open BC, start a game and the text will be all over your screen.