title: SQL CE 4.0 in Reference Manager of VS
body: <p>There</p>
  
  <p>I install both of SQL CE version 3.5 and 4.0 on my development machine, which installed VS 2012.
  My problem is: But I cannot find 4.0 version from "Reference Manager" of VS. Please look at the screen shots as below.</p>
  
  <p><strong>First:</strong> You can see both of them from "programs and features", and the installation sequence is: x86-3.5 --> x64-3.5 --> x64-4.0. And I restarted computer after each installation.
  <a href="https://i.stack.imgur.com/41sRS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/41sRS.png" alt="enter image description here"></a></p>
  
  <p><strong>Second:</strong> But I cannot find System.Data.SqlServerCe 4.0.0.0 version from "Reference Manager" of VS.
  <a href="https://i.stack.imgur.com/OANOk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OANOk.png" alt="enter image description here"></a></p>
  
  <p><strong>Third:</strong> This is my another machine which has the same environment, but 4.0 could be found.
  <a href="https://i.stack.imgur.com/ZbWOt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZbWOt.png" alt="enter image description here"></a>
  I also compare their registry value regarding of SQL CE section, all are the same.</p>
  
  <p>Appreciate if anyone could provide help on this.</p>