"WSH" is an acronym for "Windows Script Host".
ActiveState references [L3 ]
"The Microsoft® Windows® Script Host (WSH) is a language-independent scripting host for 32-bit Microsoft Windows operating system platforms. Microsoft provides both Visual Basic® Script and JavaScript scripting engines with WSH. Microsoft anticipates that other software companies will provide ActiveX® scripting engines for other languages, such as Perl, TCL, REXX, and Python."
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Visual Basic and ECMAScript [L6 ] [L7 ] are canonical WSH languages.
Among opportunities WSH affords: keystroke automation through usual Windows application menus.
See also Active Script, COM.
So, what are the Tcl scripting engines that connect WSH with Tcl?