diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0ccfbfa55..3c2047dd5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -225,8 +225,8 @@ endif()
 if(QT_STATIC)
    if(WIN32)
       if(DESIRED_QT_VERSION MATCHES 4)
-         # QtCore needs WSAAsyncSelect from Ws2_32.lib
-         set(QT_QTCORE_LIBRARY ${QT_QTCORE_LIBRARY} Ws2_32.lib)
+         # QtCore needs WSAAsyncSelect from ws2_32.lib
+         set(QT_QTCORE_LIBRARY ${QT_QTCORE_LIBRARY} ws2_32.lib)
          message("QT_QTCORE_LIBRARY: ${QT_QTCORE_LIBRARY}")
       endif()
    endif()
diff --git a/cmake/FindOSGPlugins.cmake b/cmake/FindOSGPlugins.cmake
index 8220f33d4..2654bf5d5 100644
--- a/cmake/FindOSGPlugins.cmake
+++ b/cmake/FindOSGPlugins.cmake
@@ -28,9 +28,7 @@ foreach(_library ${OSGPlugins_FIND_COMPONENTS})
 
     set(${_library_uc}_DIR ${OSGPlugins_LIB_DIR}) # to help function osg_find_library
     set(_saved_lib_prefix ${CMAKE_FIND_LIBRARY_PREFIXES}) # save CMAKE_FIND_LIBRARY_PREFIXES
-    set(CMAKE_FIND_LIBRARY_PREFIXES "") # search libraries with no prefix
     osg_find_library(${_library_uc} ${_library}) # find it into ${_library_uc}_LIBRARIES
-    set(CMAKE_FIND_LIBRARY_PREFIXES ${_saved_lib_prefix}) # restore prefix
 
     if (${_library_uc}_LIBRARIES)
         set(${_component}_LIBRARY ${${_library_uc}_LIBRARIES}) # fake as if we call find_library
diff --git a/components/files/windowspath.cpp b/components/files/windowspath.cpp
index 2354e6f31..36290db9a 100644
--- a/components/files/windowspath.cpp
+++ b/components/files/windowspath.cpp
@@ -6,7 +6,7 @@
 
 #include <shlobj.h>
 #include <shlwapi.h>
-#include <WinReg.h>
+#include <winreg.h>
 
 #include <boost/locale.hpp>
 namespace bconv = boost::locale::conv;