If this is the final step of your script, you don't need to use halt script. Use exit script or structure your script control steps so that even this step is not needed. Example:
IF [Expression Here ]
#Put script steps where expression is true here
#Put Script steps where expression is false here
WIth the above structure, no halt script nor exit script, nor exit application step is needed. The script will run to completion and then the file will close.
Thank You very much. This solved the problem !