This Knowledge Base article provides information about creating file filters manually.
Symantec Continuous Availability allows for the addition of custom (user defined) file filters, for example, C:\Program files\3rd party application\**
When creating file filters, if you attempt to add the root of a drive to the file filter set, Continuous Availability will veto the new file filter. The is done to prevent problems replicating the System Volume Information folder.
Care should always be taken when adding custom filters. Please contact Symantec Support if you have any questions about this Knowledge Base article or require further advice.
Symantec Continuous Availability 2011
Continuous Availability REFID-2176