title: Debugging Visual Studio linker
body: <p>I am trying to build an xll addin for Excel using appropriate framwork downloaded from MS website. I am getting the following linker errors:</p>
  
  <pre><code>1&gt;FRAMEWRK.obj : error LNK2001: unresolved external symbol _Excel4
  1&gt;FRAMEWRK.obj : error LNK2001: unresolved external symbol _Excel4v@16
  </code></pre>
  
  <p>I think that these should be defined in <code>XLCALL32.LIB</code> included in the package from MS, but I don't know how to check it. Moreover, added the folder containing this library to the Additional Library Directories, without luck. </p>
  
  <p>Hence my questions:
  (1) How can I check what is in <code>XLCALL32.LIB</code>?
  (2) How can I see which files the linker is using to see if my library is actually included?</p>