title: ActiveX Controls stopped working on particular Excel file
body: <p>The ActiveX controls stopped working on my Excel file. They worked till last Friday. I found some threads here which state this is because of Microsoft security updates.</p>
  
  <p>My concern is, the error should come on every Excel file on my system. I get the error with one particular Excel file. Also, the same file works on my colleague's system. I am not able to view the VBA code too.</p>
  
  <p>When I open the VBA code, I get:</p>
  
  <blockquote>
    <p>system error &amp;H80004005- Unknown Error</p>
  </blockquote>
  
  <p>When I try to add a new ActiveX Control, I get:</p>
  
  <blockquote>
    <p>Cannot insert object</p>
  </blockquote>