If you go to ports on ide menu does it show a list ?? Arduino? clones don't automatically come up in the menu so you have to select a port from the list that it's connected to.
To find which one, open Control Panel, System, Device Manager and look at Ports? without the Raduino plugged in.? Then look for a change in the ports that will show which one it is connected to when you plug it in.
Which version of IDE are you using? The latest version installs the CH341-SER usb driver but earlier ones don't.The driver is in the "BitX40 using new library" folder in files section, you may need to install that.
Have you tried programming any Arduinos yet under XP, it usually chickens out with one of many errors.
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Rob G4NQX
