FreeWrap - Build stand alone TCL/TK applications. FreeWrap turns TCL/TK scripts into single-file binary executable programs. - http://freewrap.sourceforge.net/
TclKit packaged runtime for Tcl/Tk - A multi-platform wrapper for Tcl, Tk, and MetaKit, with support for scripted documents. - http://www.equi4.com/tclkit.html
MkTclApp - A tool for mixing C/C++ with Tcl/Tk to make a standalone executable. - http://www.hwaci.com/sw/mktclapp/
Simplified Wrapper and Interface Generator - A tool that easily allows a developer to wrap C/C++ functions for use with Tcl. Also supports other scripting languages. - http://www.swig.org/