Then change
$sMAC = StringLeft(StringReplace(StringReplace(StringStripWS(StdoutRead($hRun), 8), "-", ""), """", ""), 12) ; format MAC address
; Check if Corp. IS&T has been contacted
$hYesNo = MsgBox(4, "Check!", "Have you registered the MAC# with Corporate IS&T for ACS (Authentication)")
To
$sMAC = StringLeft(StringReplace(StringStripWS(StdoutRead($hRun), 8), """", ""), 17) ; format MAC address
; Check if Corp. IS&T has been contacted
$hYesNo = MsgBox(4, "Check!", "Have you registered the MAC " & $sMAC & " with Corporate IS&T for ACS (Authentication)")