returns xml fragment.
<response success="true" error="">
if success attribute is "true", the folder list has been retrived successfully like the xml sample below.
if success attribute is "false", the error attribute indicates the encountered error.
<response success="true" error="">
<folder FolderID="10137" Name="General Ledger" Path="\Accounting\General Ledger" Description="" CreationDate="2007-06-14 11:00:14" OwnerName="System Administrator" />
<folder FolderID="10286" Name="Incoming Invoices" Path="\Accounting\Incoming Invoices" Description="This folder stores all incoming invoices. You can search for invoices in the system using the INVOICE custom property. You can also perform content searches on PDF documents." CreationDate="2007-08-03 12:07:44" OwnerName="System Administrator" />
<folder FolderID="10138" Name="Payables" Path="\Accounting\Payables" Description="" CreationDate="2007-06-14 11:00:15" OwnerName="System Administrator" />
<folder FolderID="10139" Name="Receivables" Path="\Accounting\Receivables" Description="" CreationDate="2007-06-14 11:00:15" OwnerName="System Administrator" />
</response>