diff --git a/.github/workflows/test-windows.yml b/.github/workflows/test-windows.yml
index ad807961cbc..27acad3eeca 100644
--- a/.github/workflows/test-windows.yml
+++ b/.github/workflows/test-windows.yml
@@ -27,7 +27,7 @@ jobs:
         python.exe $env:GITHUB_WORKSPACE\winbuild\build_dep.py
         # .\build_deps.cmd
       env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
         EXECUTABLE: bin\python.exe
       shell: pwsh
 
@@ -87,7 +87,78 @@ jobs:
         mkdir %INCLIB%\webp
         copy /Y /B src\webp\*.h %INCLIB%\webp
         copy /Y /B output\release-static\x86\lib\* %INCLIB%
-    
+
+    - name: Build dependencies / freetype
+      run: |
+        REM Toolkit v100 not available; missing VCTargetsPath; Clean failes
+
+        set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\V7.1A\Include
+        set INCLIB=%GITHUB_WORKSPACE%\winbuild\depends\msvcr10-x32
+        set BUILD=%GITHUB_WORKSPACE%\winbuild\build
+        cd /D %BUILD%\freetype-2.10.1
+        call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 8.1
+        echo on
+        rmdir /S /Q objs
+        set DefaultPlatformToolset=v140
+        set VCTargetsPath=C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\VC\VCTargets
+        set MSBUILD="C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\MSBuild.exe"
+        %MSBUILD% builds\windows\vc2010\freetype.sln /t:Build /p:Configuration="Release" /p:Platform=Win32 /m
+        xcopy /Y /E /Q include %INCLIB%
+        copy /Y /B objs\Win32\Release\freetype.dll %INCLIB%
+        copy /Y /B objs\Win32\Release\freetype.lib %INCLIB%
+
+    - name: Build dependencies / lcms2
+      if: false
+      run: |
+        REM Projects\VC2015\lcms2.sln is not available in lcms2-2.7
+
+        set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\V7.1A\Include
+        set INCLIB=%GITHUB_WORKSPACE%\winbuild\depends\msvcr10-x32
+        set BUILD=%GITHUB_WORKSPACE%\winbuild\build
+        cd /D %BUILD%\lcms2-2.7
+        call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 8.1
+        echo on
+        rmdir /S /Q Lib
+        rmdir /S /Q Projects\VC2015\Release
+        set VCTargetsPath=C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\VC\VCTargets
+        set MSBUILD="C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\MSBuild.exe"
+        %MSBUILD% Projects\VC2015\lcms2.sln /t:Clean;lcms2_static /p:Configuration="Release" /p:Platform=Win32 /m
+        xcopy /Y /E /Q include %INCLIB%
+        copy /Y /B Lib\MS\*.lib %INCLIB%
+
+    - name: Build dependencies / openjpeg
+      run: |
+        set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\V7.1A\Include
+        set INCLIB=%GITHUB_WORKSPACE%\winbuild\depends\msvcr10-x32
+        set BUILD=%GITHUB_WORKSPACE%\winbuild\build
+        cd /D %BUILD%\openjpeg-2.3.1msvcr10-x32
+        call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 8.1
+        echo on
+        cmake.exe -DBUILD_THIRDPARTY:BOOL=OFF -DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_BUILD_TYPE=Release -G "NMake Makefiles" .
+        nmake -nologo -f Makefile clean
+        nmake -nologo -f Makefile
+        mkdir %INCLIB%\openjpeg-2.3.1
+        copy /Y /B src\lib\openjp2\*.h %INCLIB%\openjpeg-2.3.1
+        copy /Y /B bin\*.lib %INCLIB%
+
+    - name: Build dependencies / ghostscript
+      if: false
+      run: |
+        REM only used for Python 2.7 in AppVeyor?
+
+        set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\V7.1A\Include
+        set INCLIB=%GITHUB_WORKSPACE%\winbuild\depends\msvcr10-x32
+        set BUILD=%GITHUB_WORKSPACE%\winbuild\build
+        cd /D %BUILD%\ghostscript-9.27
+        call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 8.1
+        echo on
+        set MSVC_VERSION=14
+        set RCOMP="C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Bin\RC.Exe"
+        nmake -nologo -f psi\msvc.mak
+        copy /Y /B bin\ %PYTHON%
+      env:
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
+
     - name: Build Pillow
       run: |
         set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\V7.1A\Include
@@ -100,15 +171,16 @@ jobs:
         call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 8.1
         set BLDOPT=install
         %PYTHON%\%EXECUTABLE% setup.py build_ext --add-imaging-libs=msvcrt install
+        %PYTHON%\%EXECUTABLE% -c "from PIL import _webp;import os, shutil;shutil.copy(r'%INCLIB%\freetype.dll', os.path.dirname(_webp.__file__));"
         %PYTHON%\%EXECUTABLE% selftest.py --installed
       env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
         EXECUTABLE: python.exe
 
-    - name: Install PyTest
-      run: '%PYTHON%\%PIP% install pytest pytest-cov'
+    - name: pip install pytest pytest-cov codecov
+      run: '%PYTHON%\%PIP% install pytest pytest-cov codecov'
       env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
         PIP: Scripts\pip.exe
     
     - name: Test Pillow
@@ -116,22 +188,14 @@ jobs:
         cd /D %GITHUB_WORKSPACE%
         %PYTHON%\%EXECUTABLE% -m pytest -vx --cov PIL --cov-report term --cov-report xml Tests
       env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
         EXECUTABLE: python.exe
-
-    - name: Install Codecov
-      run: '%PYTHON%\%PIP% install codecov'
-      env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
-        PIP: Scripts\pip.exe
     
     - name: Upload coverage
       run: |
         cd /D %GITHUB_WORKSPACE%
-        codecov --file coverage.xml --name %PYTHON%
-        echo TODO upload coverage
-        exit /B 1
+        %PYTHON%\%CODECOV% --file coverage.xml --name %PYTHON%
       env:
-        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86\
-        EXECUTABLE: python.exe
+        PYTHON: C:\hostedtoolcache\windows\Python\${{ matrix.python-version }}\x86
+        CODECOV: Scripts\codecov.exe
     
diff --git a/winbuild/build.py b/winbuild/build.py
index 0617022dcf9..e66df2f030c 100755
--- a/winbuild/build.py
+++ b/winbuild/build.py
@@ -127,7 +127,7 @@ def build_one(py_ver, compiler, bit):
 setlocal
 set LIB=%%LIB%%;C:\Python%(py_ver)s\tcl%(vc_setup)s
 call %(python_path)s\%(executable)s setup.py %(imaging_libs)s %%BLDOPT%%
-call %(python_path)s\%(executable)s -c "from PIL import _webp;import os, shutil;shutil.copy('%%INCLIB%%\\freetype.dll', os.path.dirname(_webp.__file__));"
+call %(python_path)s\%(executable)s -c "from PIL import _webp;import os, shutil;shutil.copy(r'%%INCLIB%%\freetype.dll', os.path.dirname(_webp.__file__));"
 endlocal
 
 endlocal