do i need to need to clear(set to nothing) an OLE link

[vb_student]

Hello

I was wondering if i needed to clear (set to nothing) an OLE link.
I have the following code

link = "c:\mycars\fastcars.xls!output!R6C2:R38C3" 'fixed for phase1
    OLE2.CreateLink (link)

do i need to do

set OLE2 = nothing or set link = nothing in the form_unload method?