Seeking antivirus recommendation for Windows Server 2008 R2 Foundation 64 bit
http://www.avast.com/security-software-business will give you some information about the different products available to businesses.
In addition, you can also contact Avast http://www.avast.com/contact-form.php?loadStyles and use the drop down menu for Sales Inquiry for more direct questions if necessary.
Please let us know if we can be of further assistance. Thank you.
To answer the question. Avast Server edition is what you need. It’s best to contact a local reseller I. Your area so they can work out the best price for you.