Is there a performance benefit for defining a string as String * 1 if you know that you are only going to have 1 char in it?

I notice in this post http://www.vbforums.com/showpost.php...21&postcount=4 that Hack does
VB Code:
  1. Dim EachCharacter As String * 1
rather than
VB Code:
  1. Dim EachCharacter As String