title: What happened to regtlibv12?
body: <p>I have a clean install of Windows 8 on a partition, with Visual Studio 11/2012 Professional installed and I cannot find <code>regtlibv12.exe</code> inside <code>C:\Windows\Microsoft.NET\Framework\v4.0.30319</code>.</p>
  
  <p>Below is a screenshot of my Windows 7 partition, with .Net 4.0 (and regtlibv12):</p>
  
  <p><img src="https://i.stack.imgur.com/VHJdr.jpg" alt="Windows 7 - .Net 4"></p>
  
  <p>Below is Windows 8 with .Net 4.5 (and no regtlibv12):</p>
  
  <p><img src="https://i.stack.imgur.com/vSUEE.jpg" alt="Windows 8 - .Net 4.5"></p>
  
  <p>Is <strong>regtlibv12</strong> no longer a part of the .Net framework? Do I need to install .Net 4.0 as well? What would happen if I installed .Net 4.0 over the top of 4.5? I know that they both go to the same location on the hard drive, and 4.5 effectively overwrites 4.0, and 4.5 comes as default on Windows 8. Would I need to install 4.0, and then re-install 4.5 to get <strong>regtlibv12</strong> back?</p>
  
  <p>Thanks</p>