diff --git a/.appveyor.yml b/.appveyor.yml
index 05d3bc0..59bc7bd 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -11,7 +11,7 @@ environment:
       GENERATOR: "MinGW Makefiles"
       PLATFORM: Win32-VB6-Binding
       IS_VB6_BINDING: YES
-      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=53dea98 -DWITH_SDL2_WASAPI=OFF -DUSE_DRFLAC=ON -DUSE_FLAC=OFF -DUSE_OGG_VORBIS_STB=ON -DAUDIOCODECS_BUILD_FLAC=OFF -DUSE_MP3_DRMP3=ON -DUSE_MP3_MPG123=OFF -DAUDIOCODECS_BUILD_MPG123=OFF"
+      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=53dea98 -DWITH_SDL2_WASAPI=OFF"
       APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2019"
 
     - NAME: MinGW-w64-i686-VB6-SDL.2.0.12-MinSizeRel
@@ -21,7 +21,7 @@ environment:
       GENERATOR: "MinGW Makefiles"
       PLATFORM: Win32-VB6-Binding-SDL-2.0.12
       IS_VB6_BINDING: YES
-      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=983bbf9 -DWITH_SDL2_WASAPI=OFF -DUSE_DRFLAC=ON -DUSE_FLAC=OFF -DUSE_OGG_VORBIS_STB=ON -DAUDIOCODECS_BUILD_FLAC=OFF -DUSE_MP3_DRMP3=ON -DUSE_MP3_MPG123=OFF -DAUDIOCODECS_BUILD_MPG123=OFF"
+      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=983bbf9 -DWITH_SDL2_WASAPI=OFF"
       APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2019"
 
 #    - NAME: MinGW-w64-i686-VB6-SDL.2.0.8-MinSizeRel
@@ -31,7 +31,7 @@ environment:
 #      GENERATOR: "MinGW Makefiles"
 #      PLATFORM: Win32-VB6-Binding-SDL-2.0.8
 #      IS_VB6_BINDING: YES
-#      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=e9fc66a -DWITH_SDL2_WASAPI=OFF -DUSE_DRFLAC=ON -DUSE_FLAC=OFF -DUSE_OGG_VORBIS_STB=ON -DAUDIOCODECS_BUILD_FLAC=OFF -DUSE_MP3_DRMP3=ON -DUSE_MP3_MPG123=OFF -DAUDIOCODECS_BUILD_MPG123=OFF"
+#      EXTRA_CMAKE_FLAGS: "-DBUILD_AS_VB6_BINDING=ON -DAUDIO_CODECS_BUILD_LOCAL_SDL2_SHARED=OFF -DAUDIO_CODECS_SDL2_GIT_BRANCH=e9fc66a -DWITH_SDL2_WASAPI=OFF"
 #      APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2019"
 
     - NAME: MSVC15-i686-SDL.2.0.12-NOWASAPI-Release
@@ -239,13 +239,14 @@ install:
   - set PATH=%PATH%;%APPVEYOR_BUILD_FOLDER%
 
 build_script:
+  - set MIXER_BUILD_FLAGS=-DUSE_DRFLAC=ON -DUSE_FLAC=OFF -DAUDIOCODECS_BUILD_FLAC=OFF -DUSE_OGG_VORBIS_STB=ON -DAUDIOCODECS_BUILD_OGG_VORBIS=OFF -DUSE_MP3_DRMP3=ON -DUSE_MP3_MPG123=OFF -DAUDIOCODECS_BUILD_MPG123=OFF %EXTRA_CMAKE_FLAGS%
   - md build-%COMPILER%-%BUILD_TYPE%-%PLATFORM%
   - cd build-%COMPILER%-%BUILD_TYPE%-%PLATFORM%
   - if [%COMPILER%]==[MinGW] set PATH=C:\MinGW\bin;%PATH:C:\Program Files\Git\usr\bin;=%
   - if [%COMPILER%]==[MinGW-w32] set PATH=C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;%PATH:C:\Program Files\Git\usr\bin;=%
   - if [%COMPILER%]==[MinGW-w64] set PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH:C:\Program Files\Git\usr\bin;=%
-  - if NOT [%COMPILER_FAMILY%]==[MSVC2] cmake -G "%GENERATOR%" -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DCMAKE_PREFIX_PATH=. -DCMAKE_INSTALL_PREFIX=SDL-Mixer-X -DDOWNLOAD_AUDIO_CODECS_DEPENDENCY=YES %EXTRA_CMAKE_FLAGS% ..
-  - if [%COMPILER_FAMILY%]==[MSVC2] cmake -G "%GENERATOR%" -A %PLATFORM% -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DCMAKE_PREFIX_PATH=. -DCMAKE_INSTALL_PREFIX=SDL-Mixer-X -DDOWNLOAD_AUDIO_CODECS_DEPENDENCY=YES %EXTRA_CMAKE_FLAGS% ..
+  - if NOT [%COMPILER_FAMILY%]==[MSVC2] cmake -G "%GENERATOR%" -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DCMAKE_PREFIX_PATH=. -DCMAKE_INSTALL_PREFIX=SDL-Mixer-X -DDOWNLOAD_AUDIO_CODECS_DEPENDENCY=YES %MIXER_BUILD_FLAGS% ..
+  - if [%COMPILER_FAMILY%]==[MSVC2] cmake -G "%GENERATOR%" -A %PLATFORM% -DCMAKE_BUILD_TYPE=%BUILD_TYPE% -DCMAKE_PREFIX_PATH=. -DCMAKE_INSTALL_PREFIX=SDL-Mixer-X -DDOWNLOAD_AUDIO_CODECS_DEPENDENCY=YES %MIXER_BUILD_FLAGS% ..
   - if [%COMPILER_FAMILY%]==[MinGW] cmake --build . --config %BUILD_TYPE% -- -j 2
   - if [%COMPILER_FAMILY%]==[MinGW] mingw32-make install
   - if [%COMPILER_FAMILY%]==[MSVC] cmake --build . --config %BUILD_TYPE% --target install