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Home > Success Center > Network Performance Monitor (NPM) > IIS handler mapping requirements

IIS handler mapping requirements

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Created by Interspire Import, last modified by MindTouch on Jun 23, 2016

Views: 8 Votes: 0 Revisions: 9


This article lists the file extensions that IIS must allow in order for Orion to function.


NPM v10.7


For the Orion Web Console to function, the IIS handler mapping must allow the following file extensions:

  • Pages - aspx, html
  • Services - asmx, ashx, axd
  • Resources - js, css
  • Images - png, gif, jpg, ico
  • No extension ""! (files with no extension)

For Handler Mappings, the IAO must document and approve all allowable file extensions the website allows (white list) and denies (black list) by the website. The white list and black list will be compared to the Handler Mappings in IIS. Handler Mappings at the site level take precedence over Handler Mappings at the server level.


Last modified
22:29, 22 Jun 2016