Hi can some one please help me i have been batteling for a month on the windows DDK, the usb driver in the ddk there is a rwbulk.c file and bulkusb.c file and if any body knows about this driver or files please help, what is happening is i am just not bieng able to get the console app rwbulk to work it keeps on saying "Failed to GetUsbDeviceFileName" now in the file it asks for the completedevicename = "" and here it has next to "//generated from the GUID registered by the driver itself " now what does this mean "//generated from the GUID registered by the driver itself " because i have tried my guid that i got from the registry but nothing works. well just a bit of background i have been using rapidriver to create a driver for a hp1300 to access other features from th printer which works but wont print, so now i am trying to just use the original driver to print but use this usb windows ddk to just get a handle on the pipes and query just what i need if it makes any sense sorry it might be confusing but any help will be appreciated thanks