Hi shreked,
You can do that by adding the following code to the document's 'This Document' module:
Code:
Private Sub Document_Open()
Dim StrFold As String
With Application
StrFold = .Options.DefaultFilePath(wdDocumentsPath)
With .Dialogs(wdDialogFileOpen)
.Name = "full path to folder, including final \"
.Show
End With
.ChangeFileOpenDirectory StrFold
End With
End Sub
Note that the code switches the folder opening path back to the default after the dialogue is closed.