diff --git a/listener.c b/listener.c
index 6f8f218b..8cdaef56 100644
--- a/listener.c
+++ b/listener.c
@@ -333,7 +333,7 @@ static void
 free_and_unlock_accepting_socket(struct accepting_socket *as)
 {
 	/* requires lock. */
-	if (res->s != INVALID_SOCKET)
+	if (as->s != INVALID_SOCKET)
 		closesocket(as->s);
 
 	LeaveCriticalSection(&as->lock);
@@ -376,7 +376,9 @@ start_accepting(struct accepting_socket *as)
 		int err = WSAGetLastError();
 		if (err == ERROR_IO_PENDING)
 			result = 0;
-		event_sock_warn(as->lev->fd, "AcceptEx");
+		else
+			event_warnx("AcceptEx: %s",
+			    evutil_socket_error_to_string(err));
 	}
 
 done:
@@ -384,11 +386,13 @@ done:
 	return result;
 }
 
+#if 0
 static void
 stop_accepting(struct accepting_socket *as)
 {
 	/* XXX */
 }
+#endif
 
 static void
 accepted_socket_cb(struct event_overlapped *o, uintptr_t key, ev_ssize_t n)
@@ -409,11 +413,11 @@ accepted_socket_cb(struct event_overlapped *o, uintptr_t key, ev_ssize_t n)
 	    &sa_local, &socklen_local,
 	    &sa_remote, &socklen_remote);
 
-	as->s = INVALID_SOCKET;
-
 	as->lev->base.cb(&as->lev->base, as->s, sa_remote, socklen_remote,
 	    as->lev->base.user_data);
 
+	as->s = INVALID_SOCKET;
+
 	/* Avoid stack overflow XXXX */
 	start_accepting(as);
 }
@@ -448,7 +452,7 @@ iocp_listener_getbase(struct evconnlistener *lev)
 {
 	struct evconnlistener_iocp *lev_iocp =
 	    EVUTIL_UPCAST(lev, struct evconnlistener_iocp, base);
-	return lev_iocp->event_basex;
+	return lev_iocp->event_base;
 }
 
 static const struct evconnlistener_ops evconnlistener_iocp_ops = {
@@ -497,7 +501,7 @@ evconnlistener_new_async(struct event_base *base,
 	lev->event_base = base;
 
 	if (event_iocp_port_associate(lev->port, fd, 1) < 0)
-		return -1;
+		return NULL;
 
 	lev->n_accepting = 1;
 	lev->accepting = mm_calloc(1, sizeof(struct accepting_socket *));
@@ -518,7 +522,7 @@ evconnlistener_new_async(struct event_base *base,
 
 	if (start_accepting(lev->accepting[0]) < 0) {
 		event_warnx("Couldn't start accepting on socket");
-		EnterCriticalSection(lev->accepting[0]);
+		EnterCriticalSection(&lev->accepting[0]->lock);
 		free_and_unlock_accepting_socket(lev->accepting[0]);
 		mm_free(lev->accepting);
 		mm_free(lev);
diff --git a/test/regress.h b/test/regress.h
index 24f3aa64..a586c4f7 100644
--- a/test/regress.h
+++ b/test/regress.h
@@ -49,6 +49,7 @@ extern struct testcase_t minheap_testcases[];
 extern struct testcase_t iocp_testcases[];
 extern struct testcase_t ssl_testcases[];
 extern struct testcase_t listener_testcases[];
+extern struct testcase_t listener_iocp_testcases[];
 
 void regress_threads(void *);
 void test_bufferevent_zlib(void *);
diff --git a/test/regress_iocp.c b/test/regress_iocp.c
index cd28fb7b..724c5c59 100644
--- a/test/regress_iocp.c
+++ b/test/regress_iocp.c
@@ -31,6 +31,9 @@
 #include <event2/buffer.h>
 #include <event2/bufferevent.h>
 
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
 #include "regress.h"
 #include "tinytest.h"
 #include "tinytest_macros.h"
diff --git a/test/regress_listener.c b/test/regress_listener.c
index b9de0af3..264b0587 100644
--- a/test/regress_listener.c
+++ b/test/regress_listener.c
@@ -112,6 +112,7 @@ regress_pick_a_port(void *arg)
 	evutil_socket_connect(&fd3, (struct sockaddr*)&ss2, slen2);
 
 	event_base_dispatch(base);
+	// Sleep(2000);
 
 	tt_int_op(count1, ==, 0);
 	tt_int_op(count2, ==, 0);
@@ -131,6 +132,10 @@ struct testcase_t listener_testcases[] = {
 	{ "randport", regress_pick_a_port, TT_FORK|TT_NEED_BASE,
 	  &basic_setup, NULL},
 
+        END_OF_TESTCASES,
+};
+
+struct testcase_t listener_iocp_testcases[] = {
 	{ "iocp/randport", regress_pick_a_port,
 	  TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP,
 	  &basic_setup, NULL},
diff --git a/test/regress_main.c b/test/regress_main.c
index f4d11c16..2e383971 100644
--- a/test/regress_main.c
+++ b/test/regress_main.c
@@ -319,8 +319,9 @@ struct testgroup_t testgroups[] = {
 	{ "listener/", listener_testcases },
 #ifdef WIN32
 	{ "iocp/", iocp_testcases },
-#endif
 	{ "iocp/bufferevent/", bufferevent_iocp_testcases },
+	{ "iocp/listener/", listener_iocp_testcases },
+#endif
 #ifdef _EVENT_HAVE_OPENSSL
 	{ "ssl/", ssl_testcases },
 #endif