I know and have tested (to double-check) that the following code works in a windows application form:
Dim strFmt As String = "{0,20}{1,-20}{2,-20}{3,-20}{4,-20}"
ListBox1.Items.Add(String.Format(strFmt, "COMPANY", "LOCATION", "DNS EXPIRY", "ISP EXPIRY", "CAREPACK EXPIRY"))
All of the strings...