"WSH" is an acronym for "Windows Script Host".

[[MS references]][http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarwsh/html/msdn_wsh_wp.asp]
[http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/wsh/htm/wsAboutWsh20.asp]

ActiveState references [http://aspn.activestate.com/ASPN/Reference/Products/ActivePerl/Windows/WindowsScriptHost.html]

Other references [http://www.annoyances.org/exec/show/wsh]
[http://www.labmice.net/scripting/WSH.htm]

"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 Java Script 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."


[[... much else ...]]



Visual Basic and ECMAscript are canonical WSH languages.

Among opportunities WSH affords:  keystroke automation
through usual Windows application menus.

See also [Active Script]