FinAct

Follows fundamentals of Accounts/Bookkeeping and Double-Entry System.
Separate data folders for separate companies/entities and accounting years.

You can have data folders in any hard disk of your computer, external hard disks, even pen drives. Whenever you start FinAct, you will be asked for the data folder that you want to work on.
There are 7 points of entry of transactions: Money Receipt, Money Payment, Journal, Purchase, Sale, Credit Note, Debit Note. Each entry module has nifty and flexible tools to cater to various types of Accounting systems. Purchase, Sale, Credit Note and Debit Note automatically update Stock (Inventory).
Reports range from Cash/Bank Books to Balance Sheet. You can view and/or print out each Report in different ways to cater to your Accounting and MIS needs.
Documents such as Sale Bill, Money Receipt, Payment Voucher, Journal Voucher, etc. can be printed easily. You can even design your own letterhead to use plain paper instead of expensive pre-printed stationery.