\\.\COM1
\\.\USB0 (or USB1 , USB2 etc. – check your device instance path) realterm spy drivers
\\.\COM1 /PROCESS 1234
[IRP_MJ_WRITE] \\.\COM1 Buffer: 48 65 6C 6C 6F (ASCII: Hello) [IRP_MJ_READ] \\.\COM1 Buffer: 4F 4B 0D 0A (ASCII: OK\r\n) [IRP_MJ_DEVICE_CONTROL] IOCTL_SERIAL_SET_BAUD_RATE Baud: 115200 [IRP_MJ_DEVICE_CONTROL] IOCTL_SERIAL_SET_LINE_CONTROL DataBits:8 StopBits:1 Parity:NONE [IRP_COMPLETE] Status: 0x00000000 (SUCCESS) Use these descriptions as content when documenting or teaching: \\.\COM1 \\.\USB0 (or USB1