Submit a ticketCall us

Bridging the ITSM Divide
Integrated help desk and remote support software for faster resolution

Join us on Wednesday, November 29, 2017 at 11 a.m. CT, as we discuss the benefits of effectively integrating your help desk software with remote support solutions to help increase the efficiency of IT administration, improve communication, and decrease mean time to resolution (MTTR) for IT issues of all sizes. This directly impacts end-user satisfaction and your business’ bottom line. Register Now.

Home > Success Center > Network Performance Monitor (NPM) > Always running feature for IIS websites

Always running feature for IIS websites

Table of contents
Created by Eric Bryant, last modified by Rodim Suarez on Jul 19, 2016

Views: 148 Votes: 0 Revisions: 4



This article explains how to leverage a feature in IIS to allow application pools to be in an all time ready state. This may be ideal for high use websites or a load balanced many website deployment to minimize any delay in website cache response.


  • .NET 4.X, IIS 7 deployments
  • Server 2008


How to enable the feature:

  1. Go to C:\Windows\System32\inetsrv\config on the web server(s). If multiple web servers exist, you may want to enable on all.
  2. Open the applicationhost.config file in text editor such as Notepad.
  3. Find for the <applicationpools>, </applicationPools> sections of the file.
  4. Edit the line per the application pool you want to enable this feature for regarding the website it pertains to.
    For example:
    <add name="SolarWinds Orion Application Pool" autoStart="true" enable32BitAppOnWin64="true" managedRuntimeVersion="v4.0">
  5. Add startMode="AlwaysRunning" to the line.
    For example:
    <add name="SolarWinds Orion Application Pool" autoStart="true" enable32BitAppOnWin64="true" managedRuntimeVersion="v4.0" startMode="AlwaysRunning">
  6. Save the file.
  7. Website or IIS pool does not need to be restarted however you may prefer to do so.


Note: There may be other options on how to configure this. More on this feature can be found from Microsoft technet or click here for a blog post that may help.


Last modified