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Created By  inflectra.adam Monday, September 9, 2013

Sometimes if you have installed a program that associates itself with the .js file extension, you will see the following error when you try and record/play a Rapise test:

Microsoft (R) Windows Script Host Version 5.8
Copyright (C) Microsoft Corporation. All rights reserved.
Input Error: There is no script engine for file extension ".js".

If you get this error message, you need to simply associate the .js filetype with Windows scripting host:

c:\>assoc .js=JSFile

if that doesn't work, follow these instructions:

Instructions for Windows Vista

Open an Elevated Command Prompt window. To do so, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.

  • Type the following command and press ENTER:

regsvr32 %systemroot%\system32\jscript.dll

  • Type EXIT to close the Command Prompt window
  • Download vista_js_fix.reg from the Attachments section (scroll below), and save it to Desktop
  • Right-click vista_js_fix.reg and choose Merge
  • Click Yes when asked for confirmation.

Instructions for Windows XP

  • Click Start, Run and type:

regsvr32 %systemroot%\system32\jscript.dll

  • Press ENTER
  • Download xp_js_fix.reg from the Attachments section below, and save it to Desktop
  • Right-click xp_js_fix.reg and choose Merge
  • Click Yes when asked for confirmation.

If the above does not solve the problem, then download and install Windows Script 5.7 from the following Microsoft Web site:


Article Info
  • Last Updated: 9/9/2013
  • Article ID: KB58
  • Views: 22359