Question about virtual box setup, running .bat file

I have a .bat file that I used to use to harden the settings on my virtual box vm. Hadn't used it in a little while, and built a new vm. Wen't to use my .bat file, and something must be different in the settings. I got the following error: (VERR_PDM_DEVICE_NOT_FOUND) Host OS is win7, guest OS is xp. .bat file can be supplied in the interests of speed. Additionally I have Team Viewer if that helps.