String manipulation is your problem. So long as you don't try to do anything to the string you should be ok.

Try this:
Code:
$TLine = ReadLine(1)
If Len($TLine) > 32000
  "More then 32000 characters" ?
  $TLine ?
EndIf
 
$Rc = WriteLine(9,$TLine)
$Rc = WriteLine(9,@CRLF)