Shaitan00 -1 Light Poster

My system has 2 accounts (USER and ADMIN), the user is always logged on as USER but at some specific times a process (Tool.exe) is launched under the ADMIN account (by a LocalSystem Service using CreateProcessAsUser(...)), almost everything works fine except for the fact that the process (Tool.exe) is supposed to display status to the user using CreateWindow(...).

When Tool.exe is running (as ADMIN) and the user is logged-on as USER the window is not shown (obviously)...
Is there a way to show the window of Tool.exe running under ADMIN to the user logged-on as USER?

Any help would be much appreciated...
Thanks,