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

@@ -732,6 +732,10 @@ def kill(pidfile, signal=SIG, succmsg="", errmsg="",
                   "The PID file 'server/%(pidfile)s' seems stale. "\
                   "Try removing it." % {'pid': pid, 'pidfile': pidfile})
             return
+        try:
+            print("Evennia:", succmsg)
+            return
+        except KeyboardInterrupt:
             print("Evennia:", succmsg)
             return
     print("Evennia:", errmsg)

evennia/server/evennia_runner.py

@@ -185,6 +185,8 @@ def start_services(server_argv, portal_argv):
     while True:
 
         # this blocks until something is actually returned.
+        from twisted.internet.error import ReactorNotRunning
+        try:
             try:
                 message, rc = processes.get()
             except KeyboardInterrupt:
@@ -205,6 +207,8 @@ def start_services(server_argv, portal_argv):
                 PORTAL = thread.start_new_thread(portal_waiter, (processes, ))
                 continue
             break
+        except ReactorNotRunning:
+            break
 
 
 def main():