webPartZones Property
Returns an IHTMLElementCollection collection that represents the Web Part zones in a document.
expression.webPartZones
expression Required. An expression that returns one of the objects in the Applies To list.
Example
The following example accesses the first Web Part zone in the active document.
Dim objZone As IHTMLWebPartZoneElement
Set objZone = ActiveDocument.webPartZones.Item(0)