diff --git a/libs/include/natpmp.h b/libs/include/natpmp.h
index 166b7c4..6e9f9e7 100644
--- a/libs/include/natpmp.h
+++ b/libs/include/natpmp.h
@@ -51,6 +51,13 @@ typedef unsigned short uint16_t;
 #endif	/* _WIN32 */
 #include "natpmp_declspec.h"
 
+/* Set to 9 by https://tools.ietf.org/html/rfc6886#section-3.1 which leads to a
+ * maximum timeout of 127.75 seconds, due to the initial 250 ms timeout doubling
+ * each time, so we allow a compile-time modification here.*/
+#ifndef NATPMP_MAX_RETRIES
+#define NATPMP_MAX_RETRIES (9)
+#endif
+
 typedef struct {
 	int s;	/* socket */
 	in_addr_t gateway;	/* default gateway (IPv4) */
diff --git a/libs/x86/Debug/libnatpmp.dll b/libs/x86/Debug/libnatpmp.dll
new file mode 100644
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diff --git a/libs/x86/Debug/libnatpmp.lib b/libs/x86/Debug/libnatpmp.lib
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diff --git a/libs/x86/Release/libnatpmp.dll b/libs/x86/Release/libnatpmp.dll
new file mode 100644
index 0000000..f521809
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