expression.RemoveStore(Folder)
expression Required. An expression that returns a Namespace object.
Folder Required MAPIFolder object. The Personal Folders file (.pst) to be deleted from the list.
Remarks
This method removes a store only from the Microsoft Outlook user interface. You cannot remove a store from the main mailbox on the server or from a user's hard disk using the Outlook object model.
Example
The following Microsoft Visual Basic/Visual Basic for Applications (VBA) examples removes a folder called Personal Folders from the list of folders.
Sub RemovePST()
Dim objOL As New Outlook.Application
Dim objName As Outlook.NameSpace
Dim objFolder As Outlook.MAPIFolder
Set objName = objOL.GetNamespace("MAPI")
Set objFolder = objName.Folders.Item("Personal Folders")
'Prompt the user for confirmation
Dim strPrompt As String
strPrompt = "Are you sure you want to remove the Personal Folders file?"
If MsgBox(strPrompt, vbYesNo + vbQuestion) = vbYes Then
objName.RemoveStore objFolder
End If
End Sub