diff -rup apache-log4cxx-0.10.0.orig/src/main/cpp/nteventlogappender.cpp apache-log4cxx-0.10.0/src/main/cpp/nteventlogappender.cpp
--- apache-log4cxx-0.10.0.orig/src/main/cpp/nteventlogappender.cpp	2008-03-31 18:34:10.000000000 +0200
+++ apache-log4cxx-0.10.0/src/main/cpp/nteventlogappender.cpp	2008-04-24 19:35:13.760952200 +0200
@@ -16,7 +16,7 @@
  */
 
 #if (defined(WIN32) || defined(_WIN32)) && !defined(_WIN32_WCE)
-
+#define _WINSOCKAPI_
 #include <windows.h>
 #undef ERROR
 #include <log4cxx/nt/nteventlogappender.h>