CardWorks requires a license key. If it's a recent installation and you don't have a licensed version of CardWorks installed please call WashGear tech support to schedule a fire-up session. A fire-up session typically takes about 10 minutes and is included with your purchase. Please have the name of your WashGear distributor available when you call. WashGear tech support can be reached at 888-827-9473 Monday through Friday from 8:30AM to 4:30PM mountain time.