This toolbar enables you to use Skype directly from Outlook and should work on all versions of Outlook beginning from version 2000 onwards on both Windows XP and Windows 2000. Skype for Outlook is a plugin for Skype therefore Skype needs to be installed on your system for the toolbar to work. As a side note, Outlook is a different product than Outlook Express which comes free with Windows and this toolbar will NOT work with Outlook Express.
very nice integration!