At the time, searching for a "Borland C++Builder 6 activation key" would yield thousands of results on forums and peer-to-peer networks. While Borland struggled with piracy, their focus eventually shifted toward enterprise licensing and support contracts, which were harder to pirate and more profitable.

Crack sites distribute keygens and patches that contain:

The activation process for Borland C++Builder 6 is now considered legacy, as the software is over 20 years old and was originally developed by Borland before being acquired by Embarcadero Technologies Obtaining and Using an Activation Key Requesting Legacy Keys : If you own a modern RAD Studio