<key type="i" name="regular-auto-launch-interval">
  <default>7</default>
  <summary>Interval (in days) when to auto launch for normal updates</summary>
  <description>The interval (in days) when auto launching update-manager for   normal updates. Please note that it will auto launch for security updates   immediately. If you set it to "0" it will also launch as soon as updates become   available.</description>