USB I/O Dos Appliction & Source Code in C. A simply command line utility to send and receive data from the USB I/O device.
Works with Product PN# 802x00 & 802x70.
USBDOSAP.exe
Source Code

C:>usbdosap USBDOSAP - USB I/O Dos Application - Delcom Engineering Syntax: USBDOSAP MajorCmd MinorCmd DataLSB DataMSB [V/v] V=Verbose On, v=Verbose Off.