In KFI follow these simple rules for the zone that will contain the DS Folder value.
Use a leading backslash (e.g. \Initial Top Level Collection A or \Clients)
Use \ between each collection name (e.g. \Clients\Invoices\2006\ACME)
The top level collection name must be an existing root level collection in DocuShare. In the example above the \Initial Top Level Collection A collection was renamed as \Clients
When EzeScan processes the collection structure it will automatically create any sub collections that don't exist.