texgenpack-0.6.1.tar.gz is the lastest version for Linux.
texgenpack-0.6.1.zip is the latest version for Windows.
The Windows version requires the installation of the x86
version of the pthreadVC2.dll from the pthreads-win32 project.
It is available from the following place:
Refer to the README in the package for further instructions.
The program would run better in 64-bit mode in Windows, it
should be possible to compile a 64-bit version using 64-bit
versions of libfgen, libpng and pthreadVC2.dll.