{ "check_for_updates" : false, "storage_path" : "C:\\Program Files (x86)\\BitTorrent Sync", "use_gui" : false, "webui" : { "listen" : "127.0.0.1:####", "login" : "btsync", "password" : "##", "api_key" : "##" } } I just retested it and the initial load doesn't crash on version 1.4.75.0 (subsequently crashes on 1.4.103.0). Will put debug.txt in there and test again.