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Microsoft KB Archive/178251

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Knowledge Base

Error Message: Microsoft JScript Runtime Error

Article ID: 178251

Article Last Modified on 8/27/2007


  • Microsoft Internet Explorer 3.02
  • Microsoft Internet Explorer 3.02

This article was previously published under Q178251


When you try to view a Web page, you may receive the following error message:

An error has occurred in the script on this page. The script operation has been canceled.

Microsoft Jscript runtime error

[Line: <number>] <jscript name> is undefined.


This behavior can occur if the User Agent string is missing from the HKEY_CURRENT_USER registry branch.


To resolve this issue, upgrade to Microsoft Internet Explorer version 4.01. For information about how to install Internet Explorer 4.01, please see the following article in the Microsoft Knowledge Base:

170993 How to Install Internet Explorer 4.0

Or, download the latest scripting engine for Windows from the following Microsoft Web site:

Additional query words: 4.00

Keywords: kbenv kberrmsg KB178251