How to run command in XAMPP to run OpenOffice in headless mode

How to run command in XAMPP to run OpenOffice in headless mode

I have purchased PHPDOCX PRO+ plugin. I am trying to Transform Docx to PDF
but for that it requires to run OpenOffice in headless mode. OpenOffice
Library is already bundled in PHPDocx. I am using XAMPP server on Windows
7. The command to run OpenOffice in Headless mode is :
$ lib/openoffice/openoffice.org3/program/soffice -headless
-accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard
But i don't know how to run this command in Xampp. I tried Shell Command
line of Xampp but it doesn't worked.
Please help me.