I have used Beyond Compare for 20 years, and as far as I know, it has always been and still is written in Delphi. Quest Software, maker of TOAD for Oracle was

I have used Beyond Compare for 20 years, and as far as I know, it has always been and still is written in Delphi. Quest Software, maker of TOAD for Oracle was also a big Delphi shop for many years. Not sure if they still are.