Steve S wrote: although I may come back at a much later date with an article on how the supplied DLL does it's USB communication without a specific device driver Sure, with the SETUPAPI, a bunch of DeviceIo calls, and the documentation on what the device's commands and responses are. It's generic, but only to a point. Eventually, you have to get into the specifics of the device. A guide to posting questions on CodeProject[^] Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic      2006, 2007

legit wrote: I was wondering if there is any generic way to grab the output and input to any USB device. No, there isn't. Anyway, try to post your question to the Hardware forum. :) If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

then u can use masking and shifting to swap between hi-order and low-order bytes. Regards, Mohammad And ever has it been that love knows not its own depth until the hour of separation

Can you point me to the documentation for those functions ( CreateFile and DeviceIOControl)? thanks - legit