source: Option Explicit
  Dim a,b
  a = 3
  b = 67
  MsgBox "Test #67 - Math " & (a*b)
target: Add-Type -AssemblyName Microsoft.VisualBasic
  Option Explicit
  
  $a = 3
  $b = 67
  [Microsoft.VisualBasic.Interaction]::MsgBox "Test #67 - Math " + ($a*$b)