This is an incomplete gameguard bypasser, it bypasses gameguard however there are still some checks by the game client and it disconnects after a few minutes of play. I might work on it later to try and fix this.
Instructions:
1. In the folder where derakon.exe is, locate the file gameguard.des and delete it or rename it, the latter is probably better so you can restore it later.
2. Try to launch the game as normal and get to the error about missing gameguard files, but don't click ok yet.
3. Open the bypass and set the bypasser to on, then click ok on the error and it should launch into the game.
Instructions:
1. In the folder where derakon.exe is, locate the file gameguard.des and delete it or rename it, the latter is probably better so you can restore it later.
2. Try to launch the game as normal and get to the error about missing gameguard files, but don't click ok yet.
3. Open the bypass and set the bypasser to on, then click ok on the error and it should launch into the game.