Free Invoicing Software

Suggest me some small software for sales invoicing in free of cost?

I am working for a small company where I don't have any software for sales invoicing and also my employer isnot interested in it. I am facing problem to do that manually...pls help me to sort out this problem......

Public Comments

1. here is one called GNU Cash http://www.gnucash.org/ and Turbo Cash http://www.turbocashuk.com/accounting-software-pointofsale.html
2. one word: Voipbuster
3. You can go to www.download.com and search for "invoice" software you would get around 300+ results. Now select the filter Licence = Free now you would get 30+ results. Download and install 3-4 of the 30 softwares. Try them out and select which best suits your work. If you need any further clarifications please get back to me.