Activetcl
ActiveState ActiveTcl (Mac) v.8.5.11.0
ActiveTcl from ActiveState is the industry-standard, commercial-grade Tcl distribution, available for Windows, Linux and Mac OS X (Solaris, AIX and HP-UX available in Business or Enterprise Edition).
EU-Commander v.0.105
EU-Commander is an ActiveTcl based file manager (WinCommander like) with applications bar, favorites, mime types.
Tcl Tk Aqua v.8.4.10
Tcl (Tool Command Language) is used by over half a million developers worldwide and has become a critical component in thousands of corporations.