As we have started to transition our RDS hosted apps from published desktops to RemoteApp, we have discovered that, if we want to launch another application while launching the published application, the standard options will not work, including the Run/RunOnce key, GPO Login scripts, etc. AD User object Login Scripts do work, but our security team frowns on us using that method. After some testing, I was able to use Task Scheduler using the At Login trigger. If anyone is interested in this, I can send you the details on how to make this work.