title: Installing a VBA macro in Excel 2007
body: <p>I've got a VBA macro in an Excel 2003 spreadsheet and I'd like to 'install' it on a machine running Excel. </p>
  
  <p>I created a 'Trusted Location' on the local machine, and I know how to copy the module to the existing workbook and assign a  key combination to invoke it, but I don't know how to make the macro appear automatically when someone starts Excel.  Help?</p>