title: ASP.NET problem: assembly file not found
body: <p>I'm a newbie in the GIS and ASP.NET world and I'm trying to run this tutorial: <a href="http://help.arcgis.com/en/sdk/10.0/serveradf_net/conceptualhelp/index.html#//000200000025000000" rel="nofollow">http://help.arcgis.com/en/sdk/10.0/serveradf_net/conceptualhelp/index.html#//000200000025000000</a></p>
  
  <p>I'm failing with the following error:</p>
  
  <pre><code>Could not load 'ESRI.ArcGIS.3DAnalyst, Version=10.0.0.0, Culture=neutral, PublicKeyToken=8fc3cc631e44ad86' assembly or one of its dependencies. File not found.
  
  Error in the source code:
  
  Line 37:                &lt;add assembly="Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/&gt;
  Line38:                 &lt;add assembly="AjaxControlToolkit, Version=3.0.30930.28736, Culture=neutral, PublicKeyToken=28F01B0E84B6D53E"/&gt;
  Line 39:                &lt;add assembly="ESRI.ArcGIS.3DAnalyst, Version=10.0.0.0, Culture=neutral, PublicKeyToken=8FC3CC631E44AD86"/&gt;
  Line40:                 &lt;add assembly="ESRI.ArcGIS.3DAnalystUI, Version=10.0.0.0, Culture=neutral, PublicKeyToken=8FC3CC631E44AD86"/&gt;
  Line41:                 &lt;add assembly="ESRI.ArcGIS.ADF, Version=10.0.0.0, Culture=neutral, PublicKeyToken=8FC3CC631E44AD86"/&gt;
  </code></pre>
  
  <p>I can't load any of the ESRI assemblies. </p>
  
  <p>The assemblies I need are located in the </p>
  
  <pre><code>C:\Program Files (x86)\ArcGIS\DeveloperKit10.0\DotNet 
  </code></pre>
  
  <p>folder, I tried adding assemblies in the GAC cache and adding this path to the .NET Framework\AssemblyFolders registry key but nothing worked. I also tried to change user identity for the application pool.</p>
  
  <p>Any idea on how to solve please?</p>