AntiVirus

In this post I will refer to a matter which usually slips out of people's minds when they are installing a SharePoint farm, and that is the Antivirus.

Anti-Viruses that use File-Level Scanning basically scan everything that is being used by the OS or apps, that's good for protecting from viruses but what about SharePoint in this deal?

SharePoint loses Performance on this matter if you don't exclude some folders.

Microsoft has indicated in a KB article exactly what is to be excluded, keep in mind to the changes in OS and 64 VS 32 bit servers.

The main folders are:

C: \Program Files\Common Files\Microsoft Shared\Web Service Extensions

C: Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files

C:\Program Files\Microsoft Office Servers

C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files (on 64 Bit Servers)

C:\Documents and Settings\All Users\Application Data\Microsoft\SharePoint\Config C:\Windows\Temp\WebTempDir

C:\WINDOWS\system32\LogFiles 

C:\Windows\Syswow64\LogFiles (on 2008 Servers) 

For reference here is the KB article link.