Barcode Inventory Management Software

Hi, I would like to create a barcode inventory software using ASP.NET VB. The requirements are as follows: The person (admin) would be capable of adding purchases, sales, receipts and payments. Admin would also be able to extract inventory report in excel Admin would also be able to print the receipts of sales and purchase Approval System: this system lends some products to freelancer sales men. All such items would be seperately recorded in folder named as approval. On receiving the report from the freelancer salesmen it would then be segregated between sales and or inventory. For E.g. I gave 1000 items to Mr. X. On doing so those items would go into approval folder. at the end of week / month / day Mr. X would give me status of sold and unsold items. The sold items would then automatically be moved into the sales folder and non sold items if returned would be moved into the inventory folder. More details would be given once I receive your bids. Thanks, Utpal