Sign RDP File Programmatically

Hi all,

is there a way to sign the RDP File programmatically? (i.e.  using .NET).
I've searched in the internet, but could not get any helpful information.

I want to provide the RDP file for download from my Web App.
However without signing it, the Unknown Publisher warning always comes, when user connects to the TS.

Can anyone help me?

Thank you in advance.