diff -r e740e1a38c96 -r 4ae63fcabe2e src/hotspot/os/windows/os_windows.cpp
--- a/src/hotspot/os/windows/os_windows.cpp	Mon Apr 09 20:36:04 2018 -0400
+++ b/src/hotspot/os/windows/os_windows.cpp	Mon Apr 09 10:09:38 2018 +0200
@@ -99,6 +99,8 @@
 // for enumerating dll libraries
 #include <vdmdbg.h>
 #include <psapi.h>
+#include <mmsystem.h>
+#include <winsock2.h>
 
 // for timer info max values which include all bits
 #define ALL_64_BITS CONST64(-1)