Avast Internet Security 5.1.854 with Key upto 2013.

FEATURES:

• Continuous protection against viruses and spyware
• Ensures all mails sent and received are clean
• Keeps you protected from "chat" infections
• Stops attacks from hijacked websites
• Lets you safely browse suspicious websites or run unknown applications
• Blocks hacker attacks, to protect your identity
• Keeps your mailbox free from spam
• Allows safe and uninterrupted gaming
• Compatible with Windows XP, Vista and 7

PC REQUIREMENTS:
To run avast! Internet Security your PC must meet the following criteria.

Operating Systems Supported

• Windows 7
• Windows Vista (any Edition excl. Starter Edition)
• Windows XP service pack 2 or higher

Minimum Hardware Requirements

• Processor Pentium 3
• 256MB RAM
• 370MB of free hard disk space

Please note that avast! Internet Security runs only on PCs with newer. Older Windows operating systems (Windows 95/98/ME/NT/2000) are not supported. 

Please also note that avast! will not run properly if you have other antivirus software on your PC.