Here's the code I'm using.
Sub MoveSelectedMessagesToFolder()
'Originally written by Chewy Chong
'Taken from http://verychewy.com/archive/2006/04/12/outlook-macro-to-move-an-email-to-folder.aspx
'Thanks Chewy!
'Ken
On Error Resume Next
Dim objFolder As Outlook.MAPIFolder, objInbox As Outlook.MAPIFolder
Dim objNS As Outlook.NameSpace, objItem As Outlook.MailItem
Set objNS = Application.GetNamespace("MAPI")
Set objInbox = objNS.GetDefaultFolder(olFolderInbox)
'For the "Item" portion, I used the name of the folder exactly as it appear in the ToolTip when I hover over it.
Set objFolder = objNS.Folders.Item("Personal Folders").Folders.Item("Buffer")
'Assume this is a mail folder
If objFolder Is Nothing Then
MsgBox "This folder doesn't exist!", vbOKOnly + vbExclamation, "INVALID FOLDER"
End If
If Application.ActiveExplorer.Selection.Count = 0 Then
'Require that this procedure be called only when a message is selected
Exit Sub
End If
For Each objItem In Application.ActiveExplorer.Selection
If objFolder.DefaultItemType = olMailItem Then
If objItem.Class = olMail Then
objItem.Move objFolder
End If
End If
Next