diff --git a/CMakeLists.txt b/CMakeLists.txt
index cb88be7..028eca0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,12 +10,7 @@ else()
     set(BOOST_BOOTSTRAP "bootstrap.bat")
 endif()
 
-if(NOT CMAKE_SYSTEM_NAME MATCHES "Linux")
-    ExternalProject_Add(Archive
-        PREFIX ${CMAKE_BINARY_DIR}
-        URL http://www.libarchive.org/downloads/libarchive-3.1.2.tar.gz
-        BINARY_DIR archivebuild
-        CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX})
+if(APPLE)
 
     set(BOOST_ARGS link=static stage --with-system)
     ExternalProject_Add(Boost
@@ -26,7 +21,9 @@ if(NOT CMAKE_SYSTEM_NAME MATCHES "Linux")
            BUILD_COMMAND ./bjam ${BOOST_ARGS}
            BUILD_IN_SOURCE 1
            INSTALL_COMMAND ./b2 install ${BOOST_ARGS})
-endif()  # of Linux
+endif()  # of Apple
+
+set (OSG_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 
 if (APPLE)
     SET(SDKROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk)
@@ -42,56 +39,105 @@ if (APPLE)
 #    SET(OSG_SOURCE GIT_REPOSITORY git://gitorious.org/+flightgear-developers/openscenegraph/mac-release-osg.git)
     SET(OSG_SOURCE URL http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.1.4.zip)
 
+elseif(MSVC)
+	set( OSG_MSVC "msvc" )
+  if (${MSVC_VERSION} EQUAL 1700)
+      set( OSG_MSVC ${OSG_MSVC}110 )
+  elseif (${MSVC_VERSION} EQUAL 1600)
+      set( OSG_MSVC ${OSG_MSVC}100 )
+  else (${MSVC_VERSION} EQUAL 1700)
+      set( OSG_MSVC ${OSG_MSVC}90 )
+  endif (${MSVC_VERSION} EQUAL 1700)
+  
+	SET(OSG_CMAKE_ARGS
+		-DACTUAL_3RDPARTY_DIR:PATH=${CMAKE_BINARY_DIR}/3rdParty
+		-DBUILD_OSG_APPLICATIONS:BOOL=ON
+		-DCMAKE_INSTALL_PREFIX:PATH=
+		-DOSG_PLUGIN_SEARCH_INSTALL_DIR_FOR_PLUGINS:BOOL=OFF
+		-DFREETYPE_LIBRARY:FILEPATH=${CMAKE_BINARY_DIR}/3rdParty/lib/freetype243.lib
+		-DGDAL_INCLUDE_DIR:PATH=
+		-DGDAL_LIBRARY:FILEPATH=
+    )
+	
+	# for compatability with MSVC directory layout
+	set(OSG_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/install/${OSG_MSVC}/OpenSceneGraph)
+	SET(OSG_SOURCE URL http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.1.4.zip)
 else()
     # normal OSG
     SET(OSG_SOURCE URL http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.1.4.zip)
 endif()
 
-if (WIN32)
-#    ExternalProject_Add(OpenAL )
+if (MSVC)
+# download 3rdpart dependeancies zip, including boost
+	ExternalProject_Add(WinDeps
+		DOWNLOAD_COMMAND URL http://files.goneabitbursar.com/fg/fgfs-win32-VS100-3rdParty+OSG-20120411.zip
+# extract to current root
+		SOURCE_DIR ${CMAKE_BINARY_DIR}/winDeps 
+		BINARY_DIR ${CMAKE_BINARY_DIR} 
+		CONFIGURE_COMMAND ""
+		BUILD_COMMAND ${CMAKE_SOURCE_DIR}/installWinDeps.bat
+		INSTALL_COMMAND ""
+	)
 endif() # of Windows
 
 ExternalProject_Add(OSG
+	DEPENDS WinDeps
     PREFIX ${CMAKE_BINARY_DIR}
     ${OSG_SOURCE}
     BINARY_DIR osgbuild
-    CMAKE_ARGS ${OSG_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
+    CMAKE_ARGS ${OSG_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${OSG_INSTALL_PREFIX}
+# force Release build of OpenSceneGraph
+#	BUILD_COMMAND "cmake --build . --config Release"
     )
 
+set(SG_CMAKE_ARGS -DENABLE_PACKAGE=1)
+set(FG_CMAKE_ARGS "")
+
+if (FALSE)
 ExternalProject_Add(OpenRTI
     PREFIX ${CMAKE_BINARY_DIR}
     DOWNLOAD_COMMAND GIT_REPOSITORY git://gitorious.org/openrti/openrti.git
     BINARY_DIR rtibuild 
     CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
     )
+	
+	list(APPEND SG_CMAKE_ARGS -DENABLE_RTI=1)
+	list(APPEND FG_CMAKE_ARGS -DENABLE_RTI=1)
+endif()
 
-set(SG_CMAKE_ARGS -DENABLE_RTI=1 -DENABLE_PACKAGE=1)
-set(FG_CMAKE_ARGS -DENABLE_RTI=1)
+
+
+if (WIN32)
+	list(APPEND SG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR})
+	list(APPEND FG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR})
+endif()
 
 ExternalProject_Add(SimGear 
     PREFIX ${CMAKE_BINARY_DIR}
-    DEPENDS OSG Boost Archive OpenRTI
+    DEPENDS OSG
     DOWNLOAD_COMMAND ""     # no need to download
     UPDATE_COMMAND       ""    # or update.
     SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/simgear
     BINARY_DIR sgbuild 
     CMAKE_ARGS ${SG_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX})
 
-SET(PLIB_ARGS --disable-pw --disable-sl --disable-psl --disable-ssg --disable-ssgaux)
+# on Windows, PLIB is in the 3rd-party dependancies zip
+if (NOT WIN32)
+	SET(PLIB_ARGS --disable-pw --disable-sl --disable-psl --disable-ssg --disable-ssgaux)
 
-ExternalProject_Add(PLIB 
-    PREFIX ${CMAKE_BINARY_DIR}
-    URL http://plib.sourceforge.net/dist/plib-1.8.5.tar.gz
-    CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=${CMAKE_INSTALL_PREFIX} ${PLIB_ARGS}
-    BUILD_IN_SOURCE 1
-)
+	ExternalProject_Add(PLIB 
+		PREFIX ${CMAKE_BINARY_DIR}
+		URL http://plib.sourceforge.net/dist/plib-1.8.5.tar.gz
+		CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=${CMAKE_INSTALL_PREFIX} ${PLIB_ARGS}
+		BUILD_IN_SOURCE 1
+	)
+endif()
 
 ExternalProject_Add(FlightGear
     PREFIX ${CMAKE_BINARY_DIR}
-    DEPENDS SimGear PLIB
+    DEPENDS SimGear OSG
     DOWNLOAD_COMMAND ""     # no need to download
     UPDATE_COMMAND       ""    # or update.
     SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/flightgear
     BINARY_DIR fgbuild 
     CMAKE_ARGS ${FG_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX} )
-
diff --git a/installWinDeps.bat b/installWinDeps.bat
new file mode 100644
index 0000000..945562d
--- /dev/null
+++ b/installWinDeps.bat
@@ -0,0 +1,11 @@
+
+
+REM ExternalProject can't cleanly extract a zip into an existing directory
+REM Instead we extract to a subdir, and then move the directories we want
+REM using this bat file.
+
+echo %CD%
+
+xcopy /Y /E winDeps .
+
+echo "Done copying Windows deps"
diff --git a/simgear b/simgear
index 06bfa4f..5e45bde 160000
--- a/simgear
+++ b/simgear
@@ -1 +1 @@
-Subproject commit 06bfa4f1a1ef13ce8e52b8b610fa05786ecbe5a6
+Subproject commit 5e45bdeeda7d149b30a550733121b8e34876343f