Outlook error message

Running XP Pro, Office 2003 on a Dell 8400. When opening OUTLOOK I get error message “c:\program files\uniblue\winbackup 2.00\file\redemption.dll” Was using trial of Winbackup 2.00, when offered free program Winbackup 1.86 when buying something else. I uninstalled 2.00 and installed 1.86 (does everything I want). Since then have been getting aboce message. Would be very grateful for guidance on how to reglarise this position.