I am trying to write a bat file that will change the auto-selected com port used by a device to com port 8. I have a USB GPS device that needs to be on port 8. Once I install it on com port 8 then move it to another USB port I have to change the port that it is defaulted to back to com port 8. I need a BAT file that will do this for me. I believe using "devcon" from a command prompt may help but i just can't find any examples out there that show me how.