title: Unable to load file or assembly 'System.web.Extensions' version=1.0.61025 While migrating VS 2008
body: <p>I had web application developed in VS 2005 + Sql server 2005 + Ajax 1.0 Extension .
  (Developed in Windows Server 2005)
  Now i am migrating to VS 2008.(Windows Server 2008 + Sql server 2008)</p>
  
  <p>After opening and compile my Existing application in VS 2008,i am getting error.</p>
  
  <p>Errors :- </p>
  
  <ol>
  <li><p><code>Unable to load file or assembly 'System.web.Extenstions'' version=1.0.61025.</code>
  (I think it because of AJAX Extension version.So i installed AJAX Extension 1.0 but it will give me ambiguous error so i uninstalled.I am added reference for version=3.5.0 but again unsuccessful.)
  What i will do now?</p></li>
  <li><p>Also i used 'Microsoft.SqlServer.SmoEnum', Version=9.0.242.0 in VS 2005.
  (Are i have to change it to version=10.0.0.0? by adding reference to new version.)</p></li>
  <li><p>I also used crystal report.(Is there is anything to do with it?)</p></li>
  </ol>
  
  <p>Thanks.</p>