AB Invoicing 

A free program for creating invoices. You can create professional invoices with your own logotype in any language. Extend the program with accounting and low cost modules for customers, products and invoice archive whenever you like..
invoice invoicing billing free invoicing free billing billing system invoices invoicing system accounting software simply accounting bookkeeping software small business administration multilingual

Billing Star 

A billing system for the serious user. Easy to get started with, first invoice in minutes! Professional invoices with your own logotype. Gives you complete control of your claims. Databases with customers, products, taxes, invoices.
billing billing system billing software bills receipt business software invoice invoicing invoices invoicing system