title: How to use Lib like Visual Basic in C#
body: <p>I'm having a problem which i can really tell you that i need help. I have a lib that have some method that i need. But when I added it as reference, throw this error:</p>
  
  <blockquote>
    <p>lib.dll could not be added. Please make sure that the file is
    accessible, and that it is a valid assambly or COM component.</p>
  </blockquote>
  
  <p>I can tell you that i dont know in which lenguage is written but thats not the case. I saw in one of the project I worked that someone used the reserve word <a href="http://msdn.microsoft.com/en-us/library/0bk529yw%28v=vs.71%29.aspx" rel="nofollow">Lib</a> in Visual Basic with the same Lib and it worked well for him. He could consume the resource  of the lib but the problem is that he developed it in <strong>Visual Basic</strong> and <strong>i dont know anything about Visual Basic</strong>, just <strong>C#</strong>. </p>
  
  <p>This is what he did:</p>
  
  <pre><code>Public Function Amethod Lib "theDLLfile" (ByVal s as String) As String...
  </code></pre>
  
  <p>The question is: Could that do that? How to make reference and use its methods? What does the Lib word work and how to use it?</p>
  
  <p>I really need help here.</p>
  
  <p><strong>LITTLE UPDATE:</strong></p>
  
  <p>When making reference to DLL, the url can be absolute or relative?</p>