Fcl1.7z Page

: The command-line tool 7z.exe acts as a client that calls 7z.dll to handle the actual archive creation and extraction. Key Features to Implement

To develop a new feature for the 7z format or 7-Zip software (often referred to by internal components like 7z.dll or 7z.exe ), you generally need to work with the or its open-source code. Getting Started with Development FCL1.7z

: If you use LGPL code, your modifications to that specific DLL must remain open-source. : The command-line tool 7z

: 7z has an open architecture, meaning you can integrate new methods (like Brotli, Zstd, or LZ4) by writing a wrapper for the codec. FCL1.7z