title: How to remove the lock in file association in eclipse
body: <p>IN Eclipse i want to chnage the default editor of some .htm files.</p>
  
  <p>If i try to go to FIle Association and assiciate the default editor then file gets opened in that new editor but i don't get the syntax highlighting.</p>
  
  <p>The solution is that the file association is locked ny some plugin editor</p>
  
  <p><code>Preferences -- Context type----text ----Your editor -- reomve the extension</code></p>
  
  <p>But i get the   <code>.htm(locked)</code>  so i cant remove it.</p>
  
  <p><a href="http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2Freference%2Fref-content-type.htm">http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2Freference%2Fref-content-type.htm</a></p>
  
  <blockquote>
    <p>Note: Certain items will be marked as "locked". An item is locked if
    it is one of the associations provided by the plug-in that declares
    the content type. In other words, you can remove only user-contributed
    associations.</p>
  </blockquote>
  
  <p>Is there any way to remove those locks even thought it can be hackish way but i want to do it</p>