diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 70beb9a4..ab392e7e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -67,6 +67,36 @@ jobs:
             --target=integration_test/webcrypto_test.dart \
             -d chrome
       - run: flutter pub run test -p vm,chrome # TODO: Enable firefox if it works
+  windows:
+    name: webcrypto on Windows Chrome / Firefox
+    runs-on: windows-latest
+    steps:
+      - uses: ilammy/setup-nasm@v1
+      - uses: actions/checkout@v3
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: 'stable'
+          architecture: x64
+      - name: Configure Flutter
+        run: |
+          flutter config --no-analytics
+          flutter config --enable-windows-desktop
+      - run: flutter pub get
+      - run: flutter pub run webcrypto:setup
+      - run: flutter test
+      - run: flutter test --platform chrome
+      - run: flutter test integration_test/webcrypto_test.dart -d windows
+        working-directory: ./example
+      - uses: nanasess/setup-chromedriver@v2
+      - name: Run integration_test with chromedriver
+        working-directory: ./example
+        shell: bash
+        run: |
+          ../tool/with-chromedriver.sh flutter drive \
+            --driver=test_driver/integration_test.dart \
+            --target=integration_test/webcrypto_test.dart \
+            -d chrome
+      - run: flutter pub run test -p vm,chrome,firefox
   ios:
     name: webcrypto on iOS emulator (iPhone)
     runs-on: macos-latest
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bb137fa3..8799b5aa 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -111,6 +111,10 @@ if(MSVC)
                             ${MSVC_DISABLED_WARNINGS_LIST})
   set(CMAKE_C_FLAGS   "-utf-8 -W4 -WX ${MSVC_DISABLED_WARNINGS_STR}")
   set(CMAKE_CXX_FLAGS "-utf-8 -W4 -WX ${MSVC_DISABLED_WARNINGS_STR}")
+
+  # Hack because Windows compilers will put .dll files in
+  # $CMAKE_BINARY_DIR/Debug/ folder.
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_BINARY_DIR}>)
 endif()
 if(WIN32)
   # Windows/MSVC option from CMakeLists.txt in BoringSSL
diff --git a/tool/with-chromedriver.sh b/tool/with-chromedriver.sh
index 0c153d4c..1a5affcb 100755
--- a/tool/with-chromedriver.sh
+++ b/tool/with-chromedriver.sh
@@ -32,6 +32,12 @@ else
       PLATFORM='linux64'
     elif [[ "$OSTYPE" == "darwin"* ]]; then
       PLATFORM='mac64'
+    elif [[ "$OSTYPE" == "cygwin" ]]; then
+      PLATFORM='win32'
+    elif [[ "$OSTYPE" == "msys" ]]; then
+      PLATFORM='win32'
+    elif [[ "$OSTYPE" == "win32" ]]; then
+      PLATFORM='win32'
     else
       echo "Unsupported OSTYPE: $OSTYPE"
       exit 1