diff --git a/code/nel/CMakeLists.txt b/code/nel/CMakeLists.txt
index 94b0bf05e..12398e297 100644
--- a/code/nel/CMakeLists.txt
+++ b/code/nel/CMakeLists.txt
@@ -11,6 +11,8 @@
 #       * NL_SHARE_PREFIX (default: $CMAKE_INSTALL_PREFIX/share)
 #       * NL_BIN_PREFIX (default: $CMAKE_INSTALL_PREFIX/bin)
 #       * NL_SBIN_PREFIX  (default: $CMAKE_INSTALL_PREFIX/sbin)
+#       * NL_LIB_PREFIX  (default: $CMAKE_INSTALL_PREFIX/lib)
+#       * NL_DRIVER_PREFIX  (default: $CMAKE_INSTALL_PREFIX/lib (windows) or $CMAKE_INSTALL_PREFIX/lib/nel)
 #   * Enable building of documentation: add -DBUILD_DOCUMENTATION:BOOL=ON - new make target: DoxygenDoc
 #   * Updating version: update header (above) but also update NL_VERSION below.
 #   * To build binary archive, use the 'package' target.
@@ -38,10 +40,23 @@ INCLUDE(${CMAKE_ROOT}/Modules/Documentation.cmake OPTIONAL)
 CHECK_OUT_OF_SOURCE()
 
 IF(WIN32)
-  SET(CMAKE_INCLUDE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../3rdParty/include;${CMAKE_INCLUDE_PATH}")
+  IF(NOT EXTERNAL_PATH)
+    SET(EXTERNAL_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../3rdParty" CACHE PATH "3rd party libraries root path.")
+  ENDIF(NOT EXTERNAL_PATH)
+
+  IF(NOT EXTERNAL_INCLUDE_PATH)
+    SET(EXTERNAL_INCLUDE_PATH "${EXTERNAL_PATH}/include" CACHE PATH "3rd party libraries include path.")
+  ENDIF(NOT EXTERNAL_INCLUDE_PATH)
+
+  IF(NOT EXTERNAL_LIBRARY_PATH)
+    SET(EXTERNAL_LIBRARY_PATH "${EXTERNAL_PATH}/lib" CACHE PATH "3rd party libraries lib path.")
+  ENDIF(NOT EXTERNAL_LIBRARY_PATH)
+
+  SET(CMAKE_INCLUDE_PATH "${EXTERNAL_INCLUDE_PATH};${CMAKE_INCLUDE_PATH}")
   # Stupid hack for FindOpenAL.cmake
-  SET(CMAKE_INCLUDE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../3rdParty;${CMAKE_INCLUDE_PATH}")
-  SET(CMAKE_LIBRARY_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../3rdParty/lib;${CMAKE_LIBRARY_PATH}")
+  SET(CMAKE_INCLUDE_PATH "${EXTERNAL_PATH};${CMAKE_INCLUDE_PATH}")
+  SET(CMAKE_LIBRARY_PATH "${EXTERNAL_LIBRARY_PATH};${CMAKE_LIBRARY_PATH}")
+
   IF(NOT DEFINED ENV{QTDIR})
     SET(ENV{QTDIR} "c:/qt/4.5.0")
   ENDIF(NOT DEFINED ENV{QTDIR})