USI Event Software
The only all-in-one event management software that serves as event planning software, event registration software, and room scheduling software.
http://ungerboeck.com/home.aspx
Event Registration Software
Event registration software empowers you to build event microsites, send e-invites, capture registrations, create attendee reports, and print badges.
http://www.ennect.com/Event/marketing-ideas/corporate-event-registration-management-software.aspx