Contains the executable for Windows platforms (Windows 95/98/ME/NT/2000/XP) and data files. Documentation hasn't been updated since ZDoom 1.22 (sorry), so it's not included. Nevertheless, there is some online documentation in the wiki to get you star
This is the source code for ZDoom 2.2.0. It has been compressed with 7-Zip to conserve bandwidth and download time. You can build it with Visual C++ 2005 or GCC.