Originally Posted by zParticle
Excellent choice, both for their endpoint antivirus product and their antispam/antivirus product for Exchange.
I've been slowly migrating clients from NOD32 to Vipre and Vipre Enterprise over the last two years, and it's been a very positive experience. Not quite as zippy as NOD32 2.7 but it's still very light on its feet, and for ease of use and detection/cleanup there's really no single product that compares.
I second that. Eset haven't had a viable product for Exchange for quite some time, following their failure ever to get a NOD32 v3 edition, and still no v4 edition. Then they shoot themselves in the foot by yanking away 2.7 before an Exchange replacement is ready for prime time. While you're right Vipre isn't quite as zippy as NOD32 v.2.7 was it comes close, and in any case is significantly faster than either NOD32 v3 or v4. Vipre Enterprise's central management options also put Eset's offering to shame, with its AD integration, auto-deployment and management reporting.
With Sunbelt's competitive upgrade offer, migrating from NOD32 to Vipre is a no-brainer cost-wise just now.