title: HTMLEditorExtender of ASP.NET AJAX Control Toolkit set up issues
body: <p>I  am getting the <strong>"The Sanitizer is not configured in the web.config file. Either install the AjaxControlToolkit.HtmlEditor.Sanitizer NuGet package or set the EnableSanitization property to False (insecure)."</strong> error message that a lot of people are getting.</p>
  
  <p>A lot of answers I am finding say to download files, but because the AJAXControlToolKit project has been moved to devexpress, most links are outdated.</p>
  
  <p>Tried to follow the answers provided to <a href="https://forums.asp.net/t/1824233.aspx?Sanitizer%20provider%20is%20not%20configured%20in%20the%20web%20config%20file%20If%20you%20are%20using%20the%20HtmlEditorExtender%20with%20a%20public%20website%20then%20please%20configure%20a%20Sanitizer%20provider%20Otherwise%20set%20the%20Enable%20Sanitization%20property%20to%20false%20" rel="nofollow noreferrer">this question</a>, but the links provided to download the necessary dlls are outdated.</p>
  
  <p>So I followed this <a href="https://www.nuget.org/packages/AjaxControlToolkit.HtmlEditor.Sanitizer/17.1.1" rel="nofollow noreferrer">page</a> to install the packages by typing </p>
  
  <pre><code>Install-Package AjaxControlToolkit.HtmlEditor.Sanitizer -Version 17.1.1.  
  </code></pre>
  
  <p>So it dumps two packages: HtmlAgilityPack.1.4.9 and AjaxControlToolkit.HtmlEditor.Sanitizer.17.1.1.0.</p>
  
  <p>Before that, I physically downloaded the dlls from <a href="https://github.com/subgurim/subgurim-maps-demos/tree/master/packages/AjaxControlToolkit.7.0429/lib/45/SanitizerProviders" rel="nofollow noreferrer">here</a>.</p>
  
  <p>After making references to the DLLs, I tried to follow instructions on <a href="http://www.ajaxcontroltoolkit.net/HTMLEditorExtender/HTMLEditorExtender.aspx" rel="nofollow noreferrer">this</a> page to fix the web.config file. But two issues</p>
  
  <ul>
  <li><p>AjaxControlToolkit.Sanitizer.ProviderSanitizerSection cannot be resolved.</p></li>
  <li><p>sanitizer is not a valid child element of system.web</p></li>
  </ul>
  
  <p>The github <a href="https://github.com/DevExpress/AjaxControlToolkit/wiki/HtmlEditor" rel="nofollow noreferrer">page</a> on the extender says nothing about modifying the web.config file.</p>
  
  <p>I probably chased around other sites on this issue, but I can't list them all, and it's 2:50 AM and I am at my wit's end.</p>
  
  <p>I know that the AjaxControlToolkit project has been moved to devexpress, but documentation seems to be very hard to find. </p>
  
  <p>EDIT:  I do have AjaxControlToolkit installed and have 3-4 controls from it  working on my web site.</p>