This is the Tclkit download area, see http://www.equi4.com/tclkit.html The "downloads.html" page lists all platforms and builds at a glance. The "tars/" directory has all build sources, and the genkit script. The "tclkit-win32.upx.exe" binary is a symlink to the latest build. So is "tclkit.exe" - this last one will end up ready to run as "tclkit". The 8.5a*/ areas are for the new experimental tclkit 8.5 builds. All builds are currently unthreaded.