This works in at least Quicken 2008 and 2010:

1) Please Open the Quicken Program
2) While holding ["CTRL + Shift"] keys from the left side of the keyboard
3) For 2008, go to “Online” menu and click on “One Step Update.” In 2010, instead go to “Tools” and click on “One Step Update.”
4) A small window will say ”You will no longer be prompted for the registration”
5) Release the “CTRL” and “SHIFT” keys.
6) Click on “OK” button

This can come in handy if you’re getting registration connectivity problems, such as the mysterious “webpage was canceled.”