"Groove users can now communicate with Windows Messenger — the new instant-messaging (IM) software in Windows XP. For example, a Messenger user can send an "Invite to Groove" notification directly from Messenger to a member of her contact list, automatically creating a new Groove shared space or pulling the two participants into an existing shared space. Conversely, a Groove user can send an invitation directly from a Groove shared space to a member of his Messenger contact list."
