title: System.Data.SqlClient.SqlException: Failed to generate a user instance of SQL Server
body: <p><code>System.Data.SqlClient.SqlException: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.</code></p>
  
  <p>Anybody ever get this error and/or have any idea on it's cause and/or solution?</p>
  
  <p><a href="http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=125227&amp;SiteID=1" rel="nofollow noreferrer">This link may have relevant information.</a></p>
  
  <p><strong>Update</strong></p>
  
  <p>The connection string is <code>=.\SQLEXPRESS;AttachDbFilename=C:\temp\HelloWorldTest.mdf;Integrated Security=True</code></p>
  
  <p>The suggested <code>User Instance=false</code> worked.</p>