innounp is a specialized utility designed to unpack installations created with Inno Setup, a widely-used software installation framework. This free console application allows users to extract files from self-extracting executables, enabling access to the contents of these installations conveniently. The tool has been modified to work with newer Delphi versions, making it compatible and efficient for modern systems.

The program includes several enhancements such as additional command line options for improved functionality and error handling. Users can leverage the new options (-l and -u) and utilize exit codes for seamless integration into batch file processes. While the original project has not seen updates since 2020, the modifications ensure that innounp remains a reliable tool for developers and users needing to unpack Inno Setup applications.