title: Where can I write data to on Windows Vista using any account and be viewable from all other accounts?
body: <p>I need to write some registration data (unique computer number, and corresponding activation code).</p>
  
  <p>The Computer Number needs to be visible from <i>other</i> programs and <em>all</em> accounts ({Admin|Non Admin} with User Access Control turned {On|Off} )</p>
  
  <p>It's acceptable to write the Computer Number and Activation Code only from an Admin account, but it needs to be readable from any of the other accounts. </p>
  
  <p>Currently (and I need to test this more) it seems that  if the the CN and Activation Code are written with UAC off then when the user switches UAC ON the Computer Number isn't visible.</p>