How is this to be interpreted

http://support.microsoft.com/default...b;EN-US;288732

My interpretation is that there is a tool which makes the XP components
operationel on an older platform but the condition is:

Organizations that own an Enterprise, Select, or Maintenance Agreement for
Office XP and that plan to deploy Office XP in phases can allow early
adopters of Office XP to share component-based Web pages with users who have
not yet installed Office XP. To do this, follow these steps to use the
licensing mechanism supported by Microsoft Internet Explorer:

You have to have bought one XP license or a set of licenses before you're
allowed to do this ? And for how long ?

\Michael Vardinghus