#if defined(__WIN32__)
/* Native win32 */
-#define UNICODE
-#define _UNICODE
#define __USE_W32_SOCKETS
+#if (_WIN32_WINNT < 0x0502)
+/* GetProcessId is available on Windows XP SP1 and later.
+ * Windows SDK declares it unconditionally.
+ * MinGW declares for Windows XP and later.
+ * Declare as __GetProcessId for unsupported targets. */
+#define GetProcessId __GetProcessId
+#endif
#include <winsock2.h>
#include <windows.h>
#include <winbase.h>
#include <ws2tcpip.h>
#include <psapi.h>
#include <shlobj.h>
+#include <mswsock.h>
+#if (_WIN32_WINNT < 0x0502)
+#undef GetProcessId
+#endif
+#ifndef HAVE_GETPROCESSID
+#ifdef _MSC_VER
+#include <winternl.h>
+#ifndef NT_SUCCESS
+#define NT_SUCCESS(status) ((NTSTATUS) (status) >= 0)
+#endif /* !NT_SUCCESS */
+#else /* !_MSC_VER */
+#include <ddk/ntddk.h>
+#include <ddk/ntapi.h>
+#endif /* _MSC_VER */
+#endif /* !HAVE_GETPROCESSID */
#else /* EVERYONE ELSE */
#include "mono/io-layer/wapi.h"
#include "mono/io-layer/uglify.h"