Windows Script Host
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The Microsoft Windows Script Host (originally called Windows Scripting Host, but renamed for the second release) is distributed and installed by default on Windows 98 and later versions of Microsoft Windows. It is also installed if Internet Explorer 5 (or a later version) is installed. It provides scripting capabilities far superior to batch files.
It is language-independent in the sense that it can make use of different Active Scripting language engines. By default it interprets and runs plain-text JScript (.JS and .JSE files) and VBScript (.VBS and .VBE files). Users can install different scripting engines to enable them to script in other languages, for instance Perl. The language independent filename extension WSF can also be used.
Almost anything that you do with your Windows computer can be automated using a script file. Although the Windows Script Host is a powerful tool, certain viruses make use of its features. Many people recommend disabling it (or using an antivirus program that blocks scripts) for security reasons.
An easy way to disable the Windows Script Host is to change the default handler for the .vbs, .js, .wsf, .wsh file types to edit rather than run. For a more in depth discussion on securing Windows Script Host, see [1]
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External links
es:Windows Scripting Host pt:Windows Scripting Host ru:Windows Script Host