title: Open two instances of a file in a single Visual Studio session
body: <p>I have a file, <em>xyz.cpp</em>. I want to open two instances of this file in Visual studio (BTW, I am using Visual&nbsp;Studio&nbsp;2005). Why would I want to do so? I want to compare two sections of the same file side by side. I know workarounds such as:</p>
  
  <ol>
  <li><p>Make a copy of the file. But the problem is that it's not elegant, and I don't want to  make copies every time I am faced with this.</p></li>
  <li><p>I can split the window into two. The problem with split it that I can split it horizontally only. The result of a horizontal split is that the right half of my screen is white space.</p></li>
  </ol>
  
  <p>If I were able to split it vertically or open two instances of the same file, it would increase the number of lines of code I can compare.</p>