A bar code reader is only use to scan the bar codes already excites. And if you want to use VB.NET for barcode generating
, first you need to figure out which app you want to use, asp.net, winforms, or on report solution like ssrs? Then choose one barcode component which supports VB.NET and the .NET app you want to use,install it on VS, input VB.NET codes, choose barcode type, etc. hope this helps.