In the latest Anniversary version of Windows 10, it is possible to run an Ubuntu subsystem in Windows . To get a properly running Tcl, once at the bash prompt, you only need to install the regular set of packages, e.g.
sudo apt-get update sudo apt-get install tcl tcltls tcllib tclx
Obviously, the set of packages would vary with your needs... This page is meant to collect possible issues that might arise when running existing script under this emulation layer. So far, running middle-sized scripts haven't raised any problems... EF