A program to scan inventory for JobGen/ Unitech HT630 - open to bidding

Hello, We are using JobGen and HT630 scanners. We need a program that allows us to enter or scan a Location (up to 4 digits), a UPC code and a quantity. (2 digits, with the ability to force 3 digits). We need to be able to correct the UPC if its manually entered incorrectly. It needs to cycle from quantity back to UPC, until we hit escape to enter a new location. We need to be able to load a lookup file from the client (upc only) and it would verify that the UPC is in their file (a known UPC). We need to be able to delete the scanned quantities after we upload and delete the lookup after the job is complete for a new job.