With promo code EMCPFWE26, you can practically get it for free from Newegg. Looks like you'll have to initially pay for it, but do get a $55 rebate........which the balance of $14.99 should be taken care of by the promo code. Yeah, a few hoops to jump through, but it's there if needed. Good for 48 hours. 
 
http://promotions.newegg.com/NEemail/Apr-0-2014/C0UNTD0WN-15/index-landing.html?nm_mc=EMC-IGNEFL041514&cm_mmc=EMC-IGNEFL041514-_-EMC-041514-Index-_-E0-_-48hours&et_cid=6880&et_rid=3433730#48hours
 
 

Last week I dealt with a nerve-wracking sh*tstorm, in which three of my customer sites and dozens of end-users went down within hours of one another, unable to run my application. After much frantic research, it turned out to be caused by a Kaspersky automatic update that morning. To their credit, they published a fix the next day, but it cost my customers a day's worth of productivity. I will probably never recommend Kaspersky to anyone after that trauma.

Sorry to hear that Dave.......I personally don't use it and I can see that eventhough it's "free", a headache is not worth it.
 
I've been using Webroot Secure Anywhere for the past few months and do like it quite a bit. It's a complete antivirus package that does a very good job, and has a installer so small that it would fit on a 3.5" diskette.

All of them have pushed out definition updates with false-positive on some critical file at some point. It's a tough balancing act. Do you spend weeks of testing or do you deploy to protect your user base from a new threat? Damned if you do and damned if you don't.
 
Steve

Kaspersky is way too over aggressive. I tend to recommend ESET NOD32. Pretty light on the resources and good tradeoff between detection and false positives.

I agree. I've personally be using ESET NOD32 for over 10 yrs and recommend it to all my clients. Light on resources, does it's job and stays out of the way. I don't use ESET Security Center since it's more in that monolithic, dominate your computer camp.
 
Steve

Switched my entire school district (where I work in IT) from Kaspersky to Microsoft anti-virus a couple of years ago and have enjoyed an immediate and lasting significant reduction in virus related events.