These operations are local and not leaving the host across HTTP. One should not expect that such operations would be captured because they are non-existent within a particular protocol stream. If you need locally bound operations to be recorded, then consider the operations of a Graphical Virtual User, QTP, to execute your client bound operations. You may have other options as well depending upon your level of comfort with the language of your virtual user and your ability to manipulate the file system or command shell from your virtual user.
Cultivate your ‘architectural eye.’ An understanding of client and system architecture is key for becoming an efficient performance tester.
James Pulley, http://www.loadrunnerbythehour.com/PricingMatrix