Hi Enrico,
There is no problem with GE, SU and AC communicating properly under Windows.
The problem you are encountering is probably an issue related to your virtual machine (I am 90% sure). If you are using Parallels, for example, you can launch applications belonging to the other operating system from whichever environment you are using. It sounds like you are not getting a 'pure' Windows environment in that both SU and AC are attempting to launch Google Earth on the Mac side.
See the attached screenshot for a Parallels VM configuration. If you are using Fusion, someone else will have to help. Try clearing the checkbox for "Share Mac OS X applications with Windows" and see if that resolves the problem.
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB