[tjrob]

I just installed MobileSheetsProCompanion into Windows 10. No issues. When I ran it, Windows said it prevented MSPC from using the network, and the dialog included a button to permit it. I pushed that button, and it said the Firewall settings were updated. It now works just fine (well almost, see my bug report about MSPC crashing during batch import from Mac folders).

(BTW this Windows 10 is running in a virtual machine on my Mac via VMware Fusion. Its network must of course be bridged on the Mac's WiFi.)