title: Run-time Error '1004' - Method 'Open' of object 'Workbooks' failed
body: <p>OK, so far I've uninstalled &amp; re installed Office-2010 3 to 4 times, done hours of research for 3 days with no success. I started getting this error either from Vbscript or Excel VBA, performing the same command that has worked for months. I am not sure what I may have changed, I don't recall changing anything that could cause it but I nailed it down to the <code>ReadOnly:=True</code> parameter. I think something may be wrong with the registry... but re-installing should fix it right? It didn't...</p>
  
  <p>Anyways, very simple command that I recorded on Excel 2010. This command <strong>WORKS FINE</strong> and the file opens:</p>
  
  <pre><code>Sub Macro1()
       Workbooks.Open Filename:="C:\temp\file_9928_131101.xlsx"
  End Sub
  </code></pre>
  
  <p>But when I add the <em>ReadOnly:=True</em> parameter, it does <strong>NOT WORK</strong>:</p>
  
  <pre><code>Sub Macro1()
       Workbooks.Open Filename:="C:\temp\file_9928_131101.xlsx", ReadOnly:=True
  End Sub
  </code></pre>
  
  <p>This is the returned error <strong><em>Run-time error '1004' Method 'Open' of object 'Workbooks' failed</em></strong>:</p>
  
  <p>When I click Debug, the error is at the only line of code. </p>