I don’t. I am using a hope industrial touchscreen, which as far as I know only emulates a mouse.
I have found the solution to my issue. Perhaps it can help someone else. The elo touch driver that hope industrial posts on their website, only provides mouse emulation. Windows doesn’t recognize this as a touchscreen. I went to the elo website and downloaded the newest driver and replaced the one from hope, and then the OSK began working as expected.
Has anyone done this with a thin client to a RDP session? Our client does not want to put windows machines on the floor. I have not been able to get the OSK to popup automatically within the RDP session. Using Windows server 2016/2019 Remote Desktop server to launch a Browser for the perspective.