USB HID on rdp (remote desktop)

Ethanu2 1

Hello, i've problems with rdp. I have virtual driver USB HID mouse and keyboard and the program that interacts with it. When im start my program it's connect to virtual hid usb driver and i can send message "press any keys or drag mouse to x, y cords". When im start host pc without rdp it's work fine, but when i try to connect with rdp to this host machine, my program success connected to hid usb driver, but it's not respond to my messages. in my program i send messages via

HidD_SetFeature(FDevHandle, buffer, length + 1);

It turns out that the RDP is blocking the driver, how fix this?

Dmitry Latokhin 0 Reputation points

2023-10-21T17:37:46.1566667+00:00
As I can understand, mouse/keyboard RDP drivers work on RDP session and can generate events, but only it can. So, the case can be resolved with several options:

use UMFD/KMFD driver based on HID Minidriver Sample (UMDF version 2) (or yours emulator driver) only when you disconnected from RDP session (and rdp drivers disappear) with sleep 5 | tscon.exe 2 /dest:console command, executed as administrator from PowerShell console (to make available GUI without RDP and has control on it via driver)

use another kernel upperfilters driver to control RPD drivers only if that drivers are available (only while you stay logged in rdp session), moreover you have to use exactly device_id == rdp_device_id to inject strokes via sendinput interfaces, for example, I experimented successfully on Windows Server 2022 with:

Classic Interception signed driver with Interceptor wrapper

Good constructed native/managed InputEmulator driver