diff --git a/build-win.sh b/build-win.sh
new file mode 100644
index 0000000..ae362b4
--- /dev/null
+++ b/build-win.sh
@@ -0,0 +1,4 @@
+export FFBUILD_FLAGS="--enable-ffnvcodec --enable-dxva2 --enable-amf"
+export FFBUILD_PLATFORM="win"
+
+FFMPEG_OS=mingw32 OPENH264_ARCH=i686 OPENH264_OS=mingw_nt CC=i686-w64-mingw32-gcc CXX=i686-w64-mingw32-g++ AR=i686-w64-mingw32-gcc-ar bash build.sh --arch i686
diff --git a/build-win32.sh b/build-win32.sh
deleted file mode 100644
index d484353..0000000
--- a/build-win32.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-source win-env.sh
-
-FFMPEG_OS=win32 FFMPEG_MSBUILD=1 OPENH264_ARCH=i686 OPENH264_OS=msvc CC=cl CXX=cl AR=lib bash build.sh --arch i686
diff --git a/build-win64.sh b/build-win64.sh
deleted file mode 100755
index ddda346..0000000
--- a/build-win64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-source win-env.sh
-
-FFMPEG_OS=win64 FFMPEG_MSBUILD=1 OPENH264_ARCH=x86_64 OPENH264_OS=msvc CC=cl CXX=cl AR=lib bash build.sh --arch x86_64
diff --git a/build.sh b/build.sh
index bdb13b7..48983fc 100755
--- a/build.sh
+++ b/build.sh
@@ -28,10 +28,11 @@ mkdir -p $PREFIX
 mkdir -p $workDir
 mkdir -p $outDir
 
+bash scripts/build-iconv.sh
+
 case $FFBUILD_PLATFORM in
   win)
     bash scripts/build-ffnvcodec.sh
-    # disabled due to build error
     # bash scripts/build-libmfx.sh
     ;;
 esac
diff --git a/patches/mfx.patch b/patches/mfx.patch
deleted file mode 100644
index 622f7bd..0000000
--- a/patches/mfx.patch
+++ /dev/null
@@ -1,99 +0,0 @@
-Subject: [PATCH] fix for vcpkg
-fix missing mfx_driver_store_loader related symbols
----
-Index: CMakeLists.txt
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
-diff --git a/CMakeLists.txt b/CMakeLists.txt
---- a/CMakeLists.txt	(revision 7e4d221c36c630c1250b23a5dfa15657bc04c10c)
-+++ b/CMakeLists.txt	(revision 5ebef171699530ca01594a5cef10a68811f4d105)
-@@ -40,6 +39,7 @@
-     src/mfx_load_plugin.cpp
-     src/mfx_plugin_hive.cpp
-     src/mfx_win_reg_key.cpp
-+    src/mfx_driver_store_loader.cpp
-   )
- endif (CMAKE_SYSTEM_NAME MATCHES "Windows")
- 
-@@ -56,6 +56,12 @@
- configure_file (${CMAKE_SOURCE_DIR}/libmfx.pc.cmake ${CMAKE_BINARY_DIR}/libmfx.pc @ONLY)
- 
- add_library( mfx STATIC ${SOURCES} )
-+
-+if (CMAKE_SYSTEM_NAME MATCHES "Windows")
-+  set_target_properties(mfx
-+          PROPERTIES PREFIX lib)
-+endif (CMAKE_SYSTEM_NAME MATCHES "Windows")
-+
- install (DIRECTORY ${CMAKE_SOURCE_DIR}/mfx DESTINATION ${CMAKE_INSTALL_PREFIX}/include FILES_MATCHING PATTERN "*.h")
- install (FILES ${CMAKE_BINARY_DIR}/libmfx.pc DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/pkgconfig)
- install (TARGETS mfx ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib)
-Index: libmfx.pc.cmake
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
-diff --git a/libmfx.pc.cmake b/libmfx.pc.cmake
---- a/libmfx.pc.cmake	(revision 7e4d221c36c630c1250b23a5dfa15657bc04c10c)
-+++ b/libmfx.pc.cmake	(revision 388559e9e8234eb0989e1598a9beea4035a04132)
-@@ -9,6 +9,6 @@
- Requires:
- Requires.private:
- Conflicts:
--Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.a
-+Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.lib
- Libs.private:
- Cflags: -I${includedir} -I@INTELMEDIASDK_PATH@
-Index: src/mfx_driver_store_loader.cpp
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
-diff --git a/src/mfx_driver_store_loader.cpp b/src/mfx_driver_store_loader.cpp
---- a/src/mfx_driver_store_loader.cpp	(revision 388559e9e8234eb0989e1598a9beea4035a04132)
-+++ b/src/mfx_driver_store_loader.cpp	(revision 5ebef171699530ca01594a5cef10a68811f4d105)
-@@ -24,6 +24,8 @@
- #include "mfx_dispatcher_log.h"
- #include "mfx_load_dll.h"
- 
-+#pragma comment(lib, "Ole32.lib")
-+
- namespace MFX
- {
- 
-
-===================================================================
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 9446bc4..a8a3288 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -3,16 +3,7 @@ cmake_minimum_required(VERSION 2.6)
- project( libmfx )
- 
- # FIXME Adds support for using system/other install of intel media sdk
--find_path ( INTELMEDIASDK_PATH mfx/mfxvideo.h
--  HINTS "${CMAKE_SOURCE_DIR}"
--)
--
--if (INTELMEDIASDK_PATH_NOTFOUND)
--  message( FATAL_ERROR "Intel MEDIA SDK include not found" )
--else (INTELMEDIASDK_PATH_NOTFOUND)
--  message(STATUS "Intel Media SDK is here: ${INTELMEDIASDK_PATH}")
--endif (INTELMEDIASDK_PATH_NOTFOUND)
--
-+set(INTELMEDIASDK_PATH "${CMAKE_CURRENT_LIST_DIR}")
- 
- set(SOURCES
-   src/main.cpp
-diff --git a/libmfx.pc.cmake b/libmfx.pc.cmake
-index fabb541..5d248fe 100644
---- a/libmfx.pc.cmake
-+++ b/libmfx.pc.cmake
-@@ -11,4 +11,4 @@ Requires.private:
- Conflicts:
- Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.lib
- Libs.private:
--Cflags: -I${includedir} -I@INTELMEDIASDK_PATH@
-+Cflags: -I${includedir}
diff --git a/patches/mfx/0001-fix-version.patch b/patches/mfx/0001-fix-version.patch
new file mode 100644
index 0000000..564eac5
--- /dev/null
+++ b/patches/mfx/0001-fix-version.patch
@@ -0,0 +1,25 @@
+From 38977f2aae092fd155a15d24318efb1532d5321b Mon Sep 17 00:00:00 2001
+From: paring <paring@pikokr.dev>
+Date: Mon, 22 May 2023 15:20:08 +0900
+Subject: [PATCH] fix: version
+
+---
+ libmfx.pc.cmake | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libmfx.pc.cmake b/libmfx.pc.cmake
+index 1a22c98..5730b72 100644
+--- a/libmfx.pc.cmake
++++ b/libmfx.pc.cmake
+@@ -5,7 +5,7 @@ includedir=${prefix}/include
+ 
+ Name: libmfx
+ Description: Intel Media SDK Dispatched static library
+-Version: 2013
++Version: 1.35.1
+ Requires:
+ Requires.private:
+ Conflicts:
+-- 
+2.40.0
+
diff --git a/scripts/build-ffmpeg.sh b/scripts/build-ffmpeg.sh
index bf2413a..36b6159 100644
--- a/scripts/build-ffmpeg.sh
+++ b/scripts/build-ffmpeg.sh
@@ -1,6 +1,7 @@
+set -x
+
 export ffmpegPath=$workDir/ffmpeg
 export amfPath=$workDir/amf
-# export CFLAGS=-L$PREFIX/lib
 
 git clone https://github.com/FFmpeg/FFmpeg -b release/6.0 $ffmpegPath --depth 1
 
@@ -8,23 +9,22 @@ git clone https://github.com/GPUOpen-LibrariesAndSDKs/AMF -b v1.4.29 $amfPath --
 
 cd $ffmpegPath
 
+# git am ../../patches/ffmpeg/*
+
 cp -r $amfPath/amf/public/include $PREFIX/include/AMF
 
 make distclean
 
 flags="--cc=$CC --cxx=$CXX"
 
-if [[ -z $FFMPEG_MSVC ]]; then
-  flags="--toolchain=msvc"
-fi
-
-./configure --disable-gpl --disable-nonfree --disable-doc --disable-network \
-  --disable-ffprobe --disable-ffplay --enable-static --disable-shared \
+CFLAGS="-static-libgcc -static-libstdc++ -static -I$PREFIX/include/mfx" \
+CXXCLAGS="-static-libgcc -static-libstdc++ -static -I$PREFIX/include/mfx" \
+LDFLAGS="-static-libgcc -static-libstdc++ -static" \
+  ./configure --disable-gpl --disable-nonfree --disable-doc \
+  --disable-ffprobe --disable-ffplay --enable-ffmpeg --enable-static --disable-shared \
   --enable-libopenh264 \
   --prefix=$PREFIX --enable-cross-compile --arch=$ARCH \
   --pkg-config-flags="--static" --target-os=$FFMPEG_OS \
-  --extra-ldflags="-libpath:$PREFIX/lib" \
-  --extra-cflags="-I$PREFIX/include/mfx" \
   ${flags} ${FFBUILD_FLAGS}
 
 make -j$JOBS
diff --git a/scripts/build-iconv.sh b/scripts/build-iconv.sh
new file mode 100644
index 0000000..3b48c30
--- /dev/null
+++ b/scripts/build-iconv.sh
@@ -0,0 +1,21 @@
+export iconvPath=$workDir/iconv
+
+rm -rf $iconvPath
+
+cd $workDir
+
+wget -O iconv.tar.gz https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.17.tar.gz
+
+tar zxvf iconv.tar.gz
+
+mv libiconv* $iconvPath
+
+rm iconv.tar.gz
+
+cd $iconvPath
+
+./configure --prefix=$PREFIX --arch=$ARCH --enable-static --disable-shared --with-pic --enable-extra-encodings --disable-doc
+
+make -j$JOBS
+
+make install
diff --git a/scripts/build-libmfx.sh b/scripts/build-libmfx.sh
index 40c5406..f9f1b7f 100644
--- a/scripts/build-libmfx.sh
+++ b/scripts/build-libmfx.sh
@@ -9,17 +9,21 @@ cd $projectDir
 
 git init
 git remote add origin https://github.com/lu-zero/mfx_dispatch
-git fetch --depth 1 origin 5a3f178be7f406cec920b9f52f46c1ae29f29bb2
+git fetch --depth 1 origin "1.35.1"
 git checkout FETCH_HEAD
 
-git apply ../../patches/mfx.patch
+git am ../../patches/mfx/*
 
 rm -rf build
 mkdir build
 
 cd build
 
-cmake -DCMAKE_INSTALL_PREFIX=$PREFIX -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS=-m32 -DCMAKE_C_FLAGS=-m32 -DCMAKE_GENERATOR_PLATFORM=x86 ..
+export CFLAGS="$CFLAGS -static-libgcc -static-libstdc++ -static"
+export CXXFLAGS="$CXXFLAGS -static-libgcc -static-libstdc++ -static"
+export LDFLAGS="$LDFLAGS -static-libgcc -static-libstdc++"
+
+cmake -DCMAKE_INSTALL_PREFIX=$PREFIX -DCMAKE_BUILD_TYPE=Release ..
 
 cmake --build . --config Release
 
diff --git a/scripts/build-openh264.sh b/scripts/build-openh264.sh
index baf231d..829ed8b 100644
--- a/scripts/build-openh264.sh
+++ b/scripts/build-openh264.sh
@@ -2,6 +2,9 @@ set -x
 
 export OPENH264_VERSION=2.3.1
 
+CFLAGS+="-static -static-libgcc -static-libstdc++"
+LDFLAGS+="-static-libgcc -static-libstdc++ -static"
+
 # TODO: detect platform
 # export CISCO_BINARY_PLATFORM=mac
 # export CISCO_BINARY_ARCH=x64
diff --git a/win-env.sh b/win-env.sh
deleted file mode 100644
index d680716..0000000
--- a/win-env.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-export FFBUILD_FLAGS="--enable-ffnvcodec --enable-dxva2 --enable-amf"
-export FFBUILD_PLATFORM="win"