Fcl1.7z Apr 2026

: If you use LGPL code, your modifications to that specific DLL must remain open-source.

: You can develop features to enhance how archive headers are compressed or encrypted, which protects file and folder names. FCL1.7z

: 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 : If you use LGPL code, your modifications