I understand you're looking for information on Visual Studio 97 and its CD key. However, I must clarify that providing or seeking free CD keys for software can be against the terms of service of the software and may not be legal. Visual Studio 97 is an older version of the software, and Microsoft has long since moved on to more recent versions.
: A lightweight, open-source, and 100% free code editor that supports almost every programming language through extensions. Historical Note
: Although often labeled as "abandonware," this term has no official legal weight. Distributing or downloading it without permission is technically software piracy.