ExeArchiver is a project mainly written in C and C++, it's free.
An archiver and library for embededing data into programs in a cross-platform manner.
ExeArchiver is a tool to create and append archives of binary files, as well as a library to read them out from a running program. It's useful if you want to avoid shipping several files to your users, allowing you to pack all needed resource in a single file.
The archiver (exear) is GPL licensed, while the library (libexear) is MIT licensed.