Executing automation across domains

Dear SmartBear,

We are facing a problem when trying to test part of a cross-domain software suite. The troublesome component is an application which is located on a remote machine in a different domain to the server(s) hosting the testing suite, scripts and license.

Normal user interaction with the remote application is performed over remote desktop connection (RemoteApp), and although TestComplete can invoke this action there is no exposure of the application itself beyond the RDP window(s).

The network suite features of TC seem like an ideal solution for driving tests on the remote machine, except that the domain separation means there is no access to the TestComplete scripts or license from the remote.

Are there any clever solutions to drive testing in such a scenario?

Kind regards