Kaspersky Internet Security 2011 Download:

Kaspersky Internet Security 2011
VERSION:  Windows 7 / Vista / XP, 1-3 Users

PRICE:  $79.95

Note: This is an old version of Kaspersky Internet Security.

Current Kaspersky software:
Kaspersky Antivirus 2015
Kaspersky Internet Security 2015

Information Below:  Review, Screenshots, System Requirements

Review of Kaspersky Internet Security 2011

    By Jay Andrew Allen

Kaspersky Last year's version of Kaspersky Internet Security brought with it a ton of great features above and beyond the usual malware protections. The latest version, Kaspersky Internet Security 2011, builds on last year's version with the addition of Safe Surf, Geo Filter, and Idle Scan. Plus, existing features such as System Watcher, Safe Run, and Parental Control have also been expanded.

1) Features & Ease of Use:  13/15

The Kaspersky Dashboard uses the same interface as Kaspersky AntiVirus, although that UI is packed with many more options. The Dashboard is well organized, although several aspects of it are a touch confusing. A green button at the top indicated that our computer was protected and up-to-date. However, clicking on the button produced a Status window that warned us we had two unfinished action items: updating our virus definition database (which Kaspersky was already doing automatically), and training Kaspersky's Anti-Spam e-mail filter by supplying it with 50 non-spam e-mail examples.

Kaspersky 2011 Dashboard:

View Larger Kaspersky Screenshots

New Features:
A new scan option, Idle Scan, is enabled by default and runs a system-wide virus scan whenever the screen saver has been on for more than five minutes, or when the user has locked the computer.

The System Watcher - Kaspersky's name for its real-time monitoring technology - has been enhanced to record the activities of systems applications so that the destructive actions of a malicious app can be rolled back.

The Geo Filter feature, which is hidden underneath Settings->Web Anti-Virus->Settings->Geo Filter, ranks country domains according to the amount of malware that originates from those locations, and enables blocking Web content from the country's entire domain.

Finally, Kaspersky Internet Security 2011 is available not only through its System Tray icon, but as a Sidebar Gadget on Windows Vista and Windows 7 machines.

Other Key Features:
The advanced features of Kaspersky Internet Security are easy to access and understand. Safe Run provides a safe execution environment - a sandbox - in which to run potentially malicious applications, such as applications whose publisher can't be verified. Kaspersky also provides Safe Surf, a.k.a. Safe Run for Websites, and a Virtual Keyboard that can be used to keep sensitive personal and financial data out of the hands of keystroke-logging applications. While these features are great ideas, it should be noted that Avast! Antivirus provides these same features for half the cost.

But Kaspersky Internet Security has a few other tricks up its sleeve, including a flexible Parental Controls feature. With Parental Controls, parents can place any number of password-protected restrictions they desire on any account on the current machine. Controls include: total amount of time spent logged in; which applications can be accessed; whether Web sites belonging to certain categories (such as pornography and gambling) should be blocked; whether chat/IM usage should be curtailed; and even whether certain words should be monitored in IM conversations.

Kaspersky also features an ad blocker, called Anti-Banner. Sadly, this feature isn't enabled by default. Fortunately, it only takes a mouse click to activate it!

Kaspersky Internet Security 2011 ships with its own firewall technology, and sports a nice configuration interface that groups sites according to their trust level. Unfortunately, on our test machines, the Firewall Settings dialog proved hard to use due to its sluggish performance.

2) Virus Scanner:  4/5

Kaspersky Internet Security supports a Full Scan, a Critical Areas Scan (a scan of the areas of your system most commonly infected), and an Idle Scan that activates whenever your computer is locked or the screensaver is active. The Scan window in KIS also features a "target" icon on which users can drop a file or folder for an individual scan of suspicious files - a very handy feature supported by few other anti-virus platforms.

Kaspersky Virus Scanner:

View Larger Kaspersky Screenshots

Speed: On our reference machine*, Kaspersky managed to complete a scan of our 1GB test file matrix in 37.5 seconds, for a scan speed of 27.3 MB per second. This is reasonable, though nowhere near the top of the pack. However, in our Subsequent Scans test, Kaspersky proved to have the second highest scan speed across a battery of 10 scans. (See Scan Speed Comparison)

Updates: Kaspersky does a solid job keeping its virus database fresh: the platform updates its virus database definitions an average of 12.5 times daily. (See Updates Per Day Comparison)

*Reference Computer:  Windows 7 Home Premium running on a Toshiba Pentium Dual-Core T4200 (64 bit), with 3GB of RAM and a 210GB hard drive.

3) Performance Testing:  6.5/10

Kaspersky Internet Security 2011's results of our in-house Performance Testing show above average results. See full results below.

Memory Use: Kaspersky 2011 uses 27.6 MB of system memory. #6 ranked program of the 15 Internet Security programs we tested.

Reboot Time: Kaspersky added 18.0 seconds to our test computer's reboot time. #6 ranked program.

Installation Size: Kaspersky Internet Security 2011 requires 711 MB of hard-drive space for installation. #13 ranked program.

Initial Scan Speed: Kaspersky Internet Security scans files the first time at a speed of 27.3 MB/s. #6 ranked program.

Subsequent Scan Speed: Kaspersky performs subsequent scans at a speed of 295.1 MB/s. #2 ranked program.

Initial Application Launch: Kaspersky 2011 added 0.484s to launch a web browser for the first time after a reboot. #8 ranked program.

Subsequent Application Launch: Kaspersky added 0.222s on average for subsequent web browser launches. #7 ranked program.

File Conversion Time: Kaspersky added 0.45s on average to convert a MP3 file to four other file types. #9 ranked program.

System Impact Score: The "System Impact Score" is a cumulative score tallied from the above 8 software tests (15 points given for a #1 rating, while 1 point is given for 15th place for each test). Kaspersky Internet Security 2011 scored a total of 71 out of 120 points when compared to the other Internet Security programs tested. This placed Kaspersky as the #6 (tied) ranked overall program we tested this year. Kaspersky finished just barely in the top-half of Internet Security programs - OK results, but not great.

View above Internet Security Performance Tests.

4) Effectiveness: (Virus/Malware Detection) 12.5/15

Effectiveness Score - 12.5

5) Help & Support:  3/5

»On-Screen Assistance: Most of Kaspersky's features were easy to understand, and the application often provides solid contextual help text when needed.

»Local Help: The local help file that ships with Kaspersky Internet Security is thorough, though the writing is sometimes stilted and hard to follow.

»Online Support: The support options available through Kaspersky's Support menu are limited and frustrating. Kaspersky forces users to walk through a troubleshooter before contacting Technical Support directly. Most users will be better off surfing directly to Kaspersky's Web site, where they can find options for Live Chat and telephone support.


Kaspersky Internet Security 2011 runs on most systems with a light footprint and minimal system impact. Its almost overwhelming cadre of enhanced features - including Safe Surf, Parental Controls, and Anti-Banner - leave no doubt that users who upgrade from Kaspersky AntiVirus are getting their money's worth. Overall Kaspersky is one of the best Internet Security programs we reviewed this year.

Overall Rating: Very Good    (Total Score: 39 / 50 = 4 Stars)

*Installation Time:  2 minutes and 23 seconds (excluding time taken for updates)

Misc Info:

    • Version Tested:
    • Release Date:
    • Review Date:
    • Last Updated:
May 13, 2011
    • Previous Version:
Kaspersky Internet Security 2010
    • Other Kaspersky Software:
Kaspersky AntiVirus 2011

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Kaspersky Internet Security 2011 Screenshots

View Screenshots

Screenshots of Kaspersky Internet Security 2015

Kaspersky Internet Security 2011 System Requirements:

Operating Systems:

    • Windows XP - 800 MHz or higher Processor, 512 MB available RAM memory
    • Windows 7 & Vista - 1 GHz or higher Processor, 1GB RAM (32-bit) or 2GB RAM (64-bit)

Required for all Installations:

    • Approximately 700 MB free hard-drive space for installation
    • Microsoft Internet Explorer 6 or higher
    • Microsoft Windows Installer 2.0
    • Internet connection to activate KIS
    • CD/DVD drive if installing program from CD
    • Mozilla Firefox 3.0 or newer (32-bit only)

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