C code for any platform. [This is a gzipped tar file. Windows may not recognize that fact, but, no, the file is not corrupted.]
Linux executable.(glibc version built using GCC).
Windows executable. (Built on linux using the mingw gcc cross-compiler.)
Linux executable.(glibc version built using GCC).
Windows executable. (Built on linux using the mingw gcc cross-compiler.)
Each of these packages also contains the documentation.
Check here the current version number.