How do you load different LSX/DLLs based on which platform you are on?

From Gary Devendorf and Ben Langhinrichs:

You can use an Execute statement to handle this, or any other variable loading of libraries, LSXs, etc.

Dim cmdstring As String
If platform Then
  cmdstring = |Uselsx "*mylsx"|
Else
  cmdstring = |Uselsx "*yourlsx"|
End if
Execute cmdstring