From rsi web services:
This software allows the user to enter their known financial data as it exists today and based on that information the software will make a detailed projection of the users bottom line on a day by day basis out as far as the user wants to project. Everything is based on income and expenditure data and a starting balance. Once all of the basic financial data has been provided, it is stored in a database on the users machine and all projections use that data as the basis for the projection. The user only updates the basic data as needed.