Three antivirus makers have weighed in on Microsoft’s decision to make Microsoft Security Essentials free for small businesses with 10 PCs or fewer. Symantec, ESET, and Avast have all commented about the change, and their opinions can be summed up by saying “it’s great what Microsoft is doing, but it’s not enough.”

Last week, Microsoft flipped the licensing switch for MSE, making it legal to use the antimalware program for free, even outside of home use. Microsoft claims that enterprise security software is too expensive, complicated, and hard to use for such small organizations, hence its decision to expand the reach of MSE.

Symantec, maker of the Norton line of products, says Microsoft’s decision makes sense, and backs it up with data from a 2009 survey conducted by the company an the National Cyber Security Alliance. The survey found that small businesses are storing more important information than ever, while cybercriminals are particularly interested in taking advantage of these inadequately protected small companies.