title: Intellisense in vs2010 with c++
body: <p>I can't get intellisense to work. Even if I start with an empty project and add just one file to it with only an include for <code>iostream</code> and an <code>int main()</code> function that prints a char with <code>cout</code> (basically the most basic program), if I try to get intellisense to show anything (say by typing <code>cout.</code>) I get</p>
  
  <blockquote>
    <p>IntelliSense: 'No additional information available' (See 'Troubleshooting IntelliSense in C++ Projects' for further help.)</p>
  </blockquote>
  
  <p>Hours of googling have yielded a couple of articles over at the Microsoft sites that suggest a bunch of things to try or reasons why it wouldn't work. I have tried and eliminated them all, except for one that mentions that <code>stdafx.h</code> has to be in the path.</p>
  
  <p>What is this file?<br>
  How do I know if it is in the path if I don't know where it is?<br>
  What does it have to do with IntelliSense?<br>
  Should I add this file to my project to get it to work?</p>
  
  <p>Thank you.</p>