diff --git a/channels.c b/channels.c
index b2556e3..408dee7 100644
--- a/channels.c
+++ b/channels.c
@@ -42,8 +42,19 @@
 #include "includes.h"
 
 #ifdef WIN32_FIXME
-  #define ECONNABORTED WSAECONNABORTED
-  #define ECONNREFUSED WSAECONNREFUSED
+#ifdef ECONNABORTED
+#undef ECONNABORTED
+#endif
+#define ECONNABORTED WSAECONNABORTED
+#ifdef ECONNREFUSED
+#undef ECONNREFUSED
+#endif
+#define ECONNREFUSED WSAECONNREFUSED
+#ifdef EINPROGRESS
+#undef EINPROGRESS
+#endif
+#define EINPROGRESS WSAEINPROGRESS
+#define _CRT_NO_POSIX_ERROR_CODES
 #endif