Welcome to the Arena, where high-ranking warriors are transformed into spineless mush. Abandoning every ounce of common sense and any trace of doubt, you lunge onto a stage of harrowing landscapes and veiled abysses. Your new environment rejects you with lava pits and atmospheric hazards as legions of foes surround you, testing the gut reaction that brought you here in the first place. Your new mantra: Fight or be finished.
I've noticed that some characters in Q3A are always accepted as the right cd-key. So I built a small CMD script for Windows operating systems over v5.1 (XP and above).
Message: "The cd key appears to be valid, thank you". You see: IT WORKS!
Run 'q3key.cmd'. The 'q3key' file is created automatically. An existing file is not overwritten. Copy it to your 'baseq3' directory. The cd-key is also automatically copied to the clipboard. If the q3key file is not needed, comment out or remove the 49th line.
The script can be used to create up to 16^16 different keys and it creates only a random composition of the characters listed above.