Hi Riya

Well why not use a free antivirus like AVG or Avast.
These take up less resources and are economical too.
Moreover their protection is no way less than that of Mcafee or Norton. I personally am using AVG and i recommend that.

Your firm saves money on buying antiviruses ........... They happy !
You save money on buying antiviruses ........ You happy !
Giving an idea of a free antivirus that works to your boss .......... Who knows you get a raise !

Well there has been a lot of debate on this topic here too. Just follow the link

http://www.antionline.com/showthread...9&pagenumber=1

Hope it helps