Until there is a fix or if it's fixed at all you can work around it to some degree if you start your script with a batch file...

Something like

 Code:
@echo off

ver | find "NT" > nul
if %ERRORLEVEL% == 0 goto oldkixexe

ver | find "98" > nul
if %ERRORLEVEL% == 0 goto oldkixexe

ver | find "95" > nul
if %ERRORLEVEL% == 0 goto oldkixexe

::For all other OSs
:start
kix32.exe scriptname
goto exit

:oldkixexe
kix32_453.exe scriptname

:exit