diff --git a/code/nel/include/nel/misc/dummy_window.h b/code/nel/include/nel/misc/dummy_window.h
index 81ef078f9..0993aebaa 100644
--- a/code/nel/include/nel/misc/dummy_window.h
+++ b/code/nel/include/nel/misc/dummy_window.h
@@ -26,13 +26,13 @@
 #	define WIN32_LEAN_AND_MEAN
 #endif
 #ifndef _WIN32_WINDOWS
-#	define _WIN32_WINDOWS 0x0410
+#	define _WIN32_WINDOWS 0x0500
 #endif
 #ifndef _WIN32_WINNT
-#	define _WIN32_WINNT 0x0400
+#	define _WIN32_WINNT 0x0500
 #endif
 #ifndef WINVER
-#	define WINVER 0x0400
+#	define WINVER 0x0500
 #endif
 #ifndef NOMINMAX
 #	define NOMINMAX
diff --git a/code/nel/include/nel/misc/inter_window_msg_queue.h b/code/nel/include/nel/misc/inter_window_msg_queue.h
index c23a52412..501105f61 100644
--- a/code/nel/include/nel/misc/inter_window_msg_queue.h
+++ b/code/nel/include/nel/misc/inter_window_msg_queue.h
@@ -31,13 +31,13 @@
 #	define WIN32_LEAN_AND_MEAN
 #endif
 #ifndef _WIN32_WINDOWS
-#	define _WIN32_WINDOWS 0x0410
+#	define _WIN32_WINDOWS 0x0500
 #endif
 #ifndef _WIN32_WINNT
-#	define _WIN32_WINNT 0x0400
+#	define _WIN32_WINNT 0x0500
 #endif
 #ifndef WINVER
-#	define WINVER 0x0400
+#	define WINVER 0x0500
 #endif
 #ifndef NOMINMAX
 #	define NOMINMAX
diff --git a/code/nel/include/nel/misc/win_displayer.h b/code/nel/include/nel/misc/win_displayer.h
index f450055a9..7eca48351 100644
--- a/code/nel/include/nel/misc/win_displayer.h
+++ b/code/nel/include/nel/misc/win_displayer.h
@@ -25,13 +25,13 @@
 #	define WIN32_LEAN_AND_MEAN
 #endif
 #ifndef _WIN32_WINDOWS
-#	define _WIN32_WINDOWS 0x0410
+#	define _WIN32_WINDOWS 0x0500
 #endif
 #ifndef _WIN32_WINNT
-#	define _WIN32_WINNT 0x0400
+#	define _WIN32_WINNT 0x0500
 #endif
 #ifndef WINVER
-#	define WINVER 0x0400
+#	define WINVER 0x0500
 #endif
 #ifndef NOMINMAX
 #	define NOMINMAX
diff --git a/code/nel/src/misc/stdmisc.h b/code/nel/src/misc/stdmisc.h
index b24a74616..770f2bf9f 100644
--- a/code/nel/src/misc/stdmisc.h
+++ b/code/nel/src/misc/stdmisc.h
@@ -46,12 +46,12 @@
 
 #ifdef NL_OS_WINDOWS
 #	define WIN32_LEAN_AND_MEAN
-#	define _WIN32_WINDOWS 0x0410
+#	define _WIN32_WINDOWS 0x0500
 #	ifndef _WIN32_WINNT
-#		define _WIN32_WINNT 0x0400
+#		define _WIN32_WINNT 0x0500
 #	endif
 #	ifndef NL_COMP_MINGW
-#		define WINVER 0x0400
+#		define WINVER 0x0500
 #		define NOMINMAX
 #	endif
 #	include <WinSock2.h>
diff --git a/code/nel/src/net/stdnet.h b/code/nel/src/net/stdnet.h
index df2bc931d..b09df1c4f 100644
--- a/code/nel/src/net/stdnet.h
+++ b/code/nel/src/net/stdnet.h
@@ -17,9 +17,9 @@
 #include "nel/misc/types_nl.h"
 
 #ifdef NL_OS_WINDOWS
-#	define _WIN32_WINDOWS	0x0410
+#	define _WIN32_WINDOWS	0x0500
 #	ifndef NL_COMP_MINGW
-#		define WINVER			0x0400
+#		define WINVER			0x0500
 #		define NOMINMAX
 #	endif
 #	include <winsock2.h>