Hello Dominik, I have an application that fills the username and password fields of the Windows RDP dialog using UI Automation. After the Microsoft patch, my application stopped working as well. It only started working again after I added a manifest to my application with the following entry: <requestedExecutionLevel level="asInvoker" uiAccess="true" /> The uiAccess="true" flag is crucial here. It is also important that the EXE file is located under C:\Program Files\ or C:\Program Files (x86)\, and...