Here's one thing Windows 2000 Help says about Scripting:
Windows Script Host enables scripts to be run directly in Windows by clicking a script file on the Windows desktop ... Just like Microsoft Internet Explorer, Windows Script Host serves as a controller of ActiveX scripting engines. 

Unlike Internet Explorer, however, Windows Script Host ... is ideal for both interactive and non-interactive [you're not involved] scripting needs such as logon scripting and administrative scripting.

Windows Script Host supports scripts written in Visual Basic Scripting Edition (VBScript) or JScript. 
... scripting engine uses file extensions (.vbs for VBScript; .js for JScript) to identify the script instead of the SCRIPT tag (used in HTML WebPages).

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