>I need to be able to access a USB device directly from VFP.
>Currently I am using CommTools to write to a retail pole display connected to a serial port.
>However they are now comming out with pole displays with USB interfaces and so I must keep up with the times.
>
>Does anyone know where I might find a library?

www.componentsource.com has several device driver level interfaces to USB-based devices; the ActiveX components I've tried from there have required you to communicate with the stream input and output devices on the USB port via a set of methods, similar to the methods published bhy the MSCOMM32 control for serial devices.

If it's strictly an output issue, you should be able to address the device as a Windows printer; you can send direct, uninterpreted output to the device using my DIRPRTCLASS (downloadable from UT in the Downloads section); it will require that you know either the USB port name associated with the device, or the Windows printer name assigned to it.