BillPower is a fully integrated timekeeping, billing, and bookkeeping system that will produce a wide variety of reports, including income-expense statements, balance sheets and aged receivables reports. The user has wide latitude in designing billing formats that use any font and place transaction data wherever desired. No old fashioned batch postings or end-of-period close-outs are ever needed. Much more. Runs on single PC, LAN, or Internet. Version 5.9 adds Windows Vista support.