title: #import "msado15.dll" C++ in existing project
body: <p>I am a new ADO. I was trying a tutorial related to ADO. Meanwhile, I encounter this problem. </p>
  
  <p>I want to import <code>msado15.dll</code> in an existing project ("MT4ManagerAPI" (if someone knows this project)). But import code shows </p>
  
  <pre><code>"Error: cannot open source file "C:/Users/777/Desktop/Don't Remove/Новая папка (2)/MT4-Manager-API-master/Examples/ManagerAPISample/Debug/msado15.tlh". 
  </code></pre>
  
  <p>Even, I couldn't find <code>msado15.tlh</code> in an above local address.</p>
  
  <p>This is my code :</p>
  
  <pre><code>`#import "C:\\Program Files\\Common Files\\system\\ado\\msado15.dll" \ no_namespace rename("EOF", "EndOfFile")`
  </code></pre>
  
  <p>But when I import this path not existing project in newly created project everything is alright, there is no error. I wonder what is the problem? should I change something from existing project's property?</p>