I am trying to bind my legacy VB.NET application to your tiusbdll.dll. When trying to add the dll as a project reference, Visual Studio asks me to sure that it is a valid assembly or COM object, which suggests it's not.
When trying to reference it explicitly during run-time, I get a run-time error of course. The error is "BadImageFormatException", asking me to be sure the file image is a valid managed assembly.
I have been able to re-compile and run your usb_bulk_example (in C-sharp), but I have not been able to translate that to VB.net. Do you have a VB.net example you can provide?
Thanks,
Jim