Customer Reviews
Productivity Killer 
2007-10-18
The constant warning popups for every background process at every computer startup and every start of an application (despite the attempts to create rule and adding them to 'safe list') make Kaspersky a major nuisance and productivity killer.
Buy 7.0 
2007-10-06
I actually bought the 6.0 version last week. I had a couple initial problems. I opened the packaged and inserted the provided CD and it would not run. The disc is blank. This is where I started thinking about a refund. So I went to the Kaspersky web site and downloaded 7.0 with my key code. You can also download it as a trial run before you buy it which I think is a good idea, keep reading. The website does not even offer 6.0 anymore. So I downloaded and installed 7.0. Reboot the computer. Kaspersky is running but it shut down the internet. I cannot use Firefox, IE and Kaspersky itself cannot find a connection to update itself.
So I send an email to their support. They send me some random instructions to push this button and that button on the Kaspersky control panel. I look at the instructions and realize that I do not have any of those buttons on my version of Kaspersky. I reply to this effect and they send me some more random nonsense instructions.
I finally use their live chat option. The person that responded is actually helpful. They give me some diagnostic programs to run to find the conflict. I remove some old programs. Reinstall Kaspersky. And now it runs. As it is working now it seems to run pretty well. It hasnt found any viruses yet but did find some adware.
Conclusion: Bad initial start up and installation experience. Now that it is active it seems to work fine.
A Great Internet Security Suite 
2007-10-01
I purchased Kaspersky Internet Security to replace Microsoft's Live OneCare. The main reason I switched is that reviews are constantly show OneCare as being significantly less effective at detecting viruses, etc (all though it was very easy to use and nicely non-intrusive).
Kaspersky ranked very highly for effectiveness and didn't seem to have all of the complaints that Norton and McAfee seem to get. So I thought I'd try it out.
All in all, it's an excellent suite. It was easy to set up, it's very non-intrusive, and it's not a resource hog (unless it's actively scanning). Most of the time I don't even know it's running - until it pops up a warning, etc. I also like it's detailed information. You have much more detail on what it's doing as well as a lot more control than I had with OneCare. It sacrifices some of the simplicity but I prefer to have the control.
I've only been running it for a month but, so far, there doesn't seem to be any downside. It's working great for me.
Compatibility Problems 
2007-09-14
Kaspersky Internet Security has serious compatibility issues with Microsoft Outlook. Once installed, Outlook is no longer able to connect with the mail server. Numerous discussions with support has failed to rectify this issue.
If Kaspersky fixes this issue, I will update this review.
Kasperky Internet Security 6.0 
2007-09-10
Rated #2 in many independent reviews. Virus scan is dead slow and locks up to many prgrams causing you to reboot.
Works Well 
2008-04-27
This product is totally invisible while it's working. I haven't noticed any degradation in preformance on my computer like I did with Norton.
My only issue with it is that it is a 3-user license. I installed it on 3 computers, thinking that the 1-year license clock starts independently for each machine. Wrong. Even though I installed it on the third machine a full 3 months after I installed it on the first, the expiration date was the same. All three licenses expire one year after it is installed on the first machine (even though I will only get 9 months of use from it on the thirs machine).
Hasn't Failed Me Yet 
2008-04-26
Kapersky was a much needed replacement for my computer security.
I switched from Norton to Kapersky Internet Security when my Norton Internet Security program began malfunctioning like the HAL 9000 computer. I ended up having a professional computer whiz uninstall the Norton program. At the time I was told that the challenges I experienced with the Norton program were not uncommon. What were the challenges? I'm glad you asked.
Norton Internet Security began blocking access to any "https" sites. As such you could access sites, such as banking and on-line catalogue ordering, but you could not log-on. The security icon would show that my computer was at risk, but when I clicked to get more information I was greeted with a warning that I was not an administrator. The system would likewise not allow me to disable the firewall or uninstall the program as I was not an administrator.
Since I replaced the security program with Kapersky I have had no problems with my system.
Excellent. 
2008-02-15
Having switched from Norton Internet Security because it was slowing down my system and was especially bothersome for this reason in addition to the cumbersome functioning of auto-upgrades and regular scans, I see that Kaspersky presents great improvements in these areas.
In addition, it is much more transparent and interactive. In brief, while no security system may be perfect, this, from an end user standpoint, beats Norton and MacAffee hands down because it is smoother, faster, less cumbersome and more transparent. From this standpoint, it's a better made product and a breath of fresh air.
Kaspersky anti-virus 
2007-12-11
This is typical Kaspersky. It does it's job, more thoroughly than the others. We've used them all, since we're in the business but prefer this.
Overhyped IS 
2007-11-26
After reading reviews at amazon.com,[...] I decided to switch to Kaspersky Internet Security from ZoneAlarm ISS (which was not performing well recently, update failure, etc). Awesome deal from Amazon, it was free after MIR! Installation was not that bad, after a full scan, it detected and deleted some fatal trojans and stabilized my system. My IE used to shut down for some unknown reason (probably because of those nasty worms) for some very popular sites including Sony, Blockbuster, Apple, Cnet, etc, now they all open in IE. Good job here.
Now, the bad news! This IS is not good for non-technical people at all. I am not a software expert, but have handled and completely understood many softwares (the way it works), not this one. Configuring this software is very confusing. It does not know the difference between the good and the bad! Even for very popular programs/websites, it gives me warning until I add them to trusted zone. For instance, it detects YahooMessenger program as invader. I could tell you more examples, but it could be non-ending. I normally visit one website (anandabazar.com) for the newspaper in my mother tongue (Bengali), but Kaspersky does not allow it to display its fonts and detects it as malicious object (adware). Even if I ask Kaspersky to allow the process, the fonts cannot be displayed either. Only after shutting down the IS, fonts can be displayed. After doing this, when I turn Kaspersky back on, it asks me to delete TDServer Control installed by the website. I don't find any problem with the above-mentioned website, but Kaspersky does not understand it.
Bottomline: Kaspersky may be regarded as good IS, but not the best. Its limitations cover up its advantages. I have also used the following softwares:
Mcafee anti-virus, Symantec anti-virus.
And I must say all are good, but none of them gave me peace of mind.
I am now planning to switch to Spysweeper anti-virus/antispyware security suite after reading pcmag review. Not to mention, I have used Spysweeper anti-spyware before and stopped using it as it failed to "sweep" (unable to connect). Hope that they have fixed the bugs in the new version.