These fixed the exceptions that popped up for me when stopping the evennia process on Windows - believe it or not, the wholly redundant try/except block for printing the success message in evenna_launcher actually removed a traceback.. But since Windows seems incredibly finicky, it'd probably be a good idea to see if it breaks anything for someone else using Windows first.

evennia/server/evennia_launcher.py

@@ -732,8 +732,12 @@ def kill(pidfile, signal=SIG, succmsg="", errmsg="",
                   "The PID file 'server/%(pidfile)s' seems stale. "\
                   "Try removing it." % {'pid': pid, 'pidfile': pidfile})
             return
-        print("Evennia:", succmsg)
-        return
+        try:
+            print("Evennia:", succmsg)
+            return
+        except KeyboardInterrupt:
+            print("Evennia:", succmsg)
+            return
     print("Evennia:", errmsg)