The .7z and .zip files contain identical data.
Don't forget to download the supporting files below as well.
Additional headers and shared libraries are required by zenilib. This collection of files is taken from GLEW, lib3ds, libogg, libpng, libtiff, libvorbis, SDL, SDL_image, SDL_net, SDL_ttf, TinyXML, and zlib. Most are unmodified, but some have been modified minimally to improve compatibility with supported compilers. The sources are available for download, but you probably don't need them.
Instructions vary by development environment.
For Visual Studio 2010, x86/x64
zenilib Supporting Files for Visual Studio 2010 (7z) or
zenilib Supporting Files for Visual Studio 2010 (zip)
Last updated: 0.4.2.0
These should be downloaded automatically. If you choose to download the Frameworks manually, please place the zip archive in zenilib/Xcode/ or the Frameworks directory in zenilib/.
For Xcode (for OS 10.6 and up)
zenilib Frameworks for Xcode 3.2.x/4.x.x (zip)
Last updated: 0.4.0.0
You shouldn't need to download anything else if your system is set up correctly.