diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 45ee14e..5da6a86 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -104,9 +104,9 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13.0-alpha - 3.13.0"
-        os: [ubuntu-20.04, macos-11]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         exclude:
-          - os: macos-11
+          - os: macos-latest
             python-version: "pypy-3.10"
 
     steps:
@@ -122,15 +122,32 @@ jobs:
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
         uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
+        uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}
           restore-keys: |
             ${{ runner.os }}-pip-
@@ -140,15 +157,11 @@ jobs:
         run: |
           pip install -U pip
           pip install -U setuptools wheel twine
-          # cffi will probably have no public release until a Python 3.13 beta
-          # or even RC release, see https://github.com/python-cffi/cffi/issues/23
-          echo "cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58" > cffi_constraint.txt
-          PIP_CONSTRAINT=$PWD/cffi_constraint.txt pip install cffi
       - name: Install Build Dependencies
         if: matrix.python-version != '3.13.0-alpha - 3.13.0'
         run: |
           pip install -U pip
-          pip install -U setuptools wheel twine cffi
+          pip install -U setuptools wheel twine
 
       - name: Build zope.hookable (macOS x86_64, Python 3.8+)
         if: >
@@ -193,12 +206,9 @@ jobs:
         if: matrix.python-version == '3.13.0-alpha - 3.13.0'
         run: |
           # Install to collect dependencies into the (pip) cache.
-          # cffi will probably have no public release until a Python 3.13 beta
-          # or even RC release, see https://github.com/python-cffi/cffi/issues/23
-          echo "cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58" > cffi_constraint.txt
           # Use "--pre" here because dependencies with support for this future
           # Python release may only be available as pre-releases
-          PIP_CONSTRAINT=$PWD/cffi_constraint.txt pip install --pre .[test]
+          pip install --pre .[test]
       - name: Install zope.hookable and dependencies
         if: matrix.python-version != '3.13.0-alpha - 3.13.0'
         run: |
@@ -265,9 +275,9 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13.0-alpha - 3.13.0"
-        os: [ubuntu-20.04, macos-11]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         exclude:
-          - os: macos-11
+          - os: macos-latest
             python-version: "pypy-3.10"
 
     steps:
@@ -283,15 +293,32 @@ jobs:
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
         uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
+        uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}
           restore-keys: |
             ${{ runner.os }}-pip-
@@ -301,14 +328,11 @@ jobs:
         with:
           name: zope.hookable-${{ runner.os }}-${{ matrix.python-version }}.whl
           path: dist/
-      - name: Install zope.hookable 3.13.0-alpha - 3.13.0
-        if: ${{ startsWith(matrix.python-version, '3.13.0-alpha - 3.13.0') }}
+      - name: Install zope.hookable 3.13.0-alpha - 3.13.0 ${{ matrix.python-version }}
+        if: matrix.python-version == '3.13.0-alpha - 3.13.0'
         run: |
           pip install -U wheel setuptools
-          # cffi will probably have no public release until a beta or even RC
-          # version of Python 3.13, see https://github.com/python-cffi/cffi/issues/23
-          echo 'cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58 ; platform_python_implementation == "CPython"' > cffi_constraint.txt
-          # coverage has a wheel on PyPI for a future python version which is
+          # coverage might have a wheel on PyPI for a future python version which is
           # not ABI compatible with the current one, so build it from sdist:
           pip install -U --no-binary :all: coverage
           # Unzip into src/ so that testrunner can find the .so files
@@ -317,7 +341,7 @@ jobs:
           unzip -n dist/zope.hookable-*whl -d src
           # Use "--pre" here because dependencies with support for this future
           # Python release may only be available as pre-releases
-          PIP_CONSTRAINT=$PWD/cffi_constraint.txt pip install --pre -U -e .[test]
+          pip install --pre -U -e .[test]
       - name: Install zope.hookable
         if: ${{ !startsWith(matrix.python-version, '3.13.0-alpha - 3.13.0') }}
         run: |
@@ -336,7 +360,9 @@ jobs:
       - name: Run tests without C extensions
         run:
           # coverage makes PyPy run about 3x slower!
-          PURE_PYTHON=1 python -m coverage run -p -m zope.testrunner --test-path=src --auto-color --auto-progress
+          python -m coverage run -p -m zope.testrunner --test-path=src --auto-color --auto-progress
+        env:
+          PURE_PYTHON: 1
       - name: Report Coverage
         run: |
           coverage combine
@@ -350,7 +376,7 @@ jobs:
 
   coveralls_finish:
     needs: test
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - name: Coveralls Finished
       uses: AndreMiras/coveralls-python-action@develop
@@ -363,7 +389,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9"]
-        os: [ubuntu-20.04]
+        os: [ubuntu-latest]
 
     steps:
       - name: checkout
@@ -378,15 +404,32 @@ jobs:
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
         uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
+        uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}
           restore-keys: |
             ${{ runner.os }}-pip-
@@ -414,7 +457,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9"]
-        os: [ubuntu-20.04]
+        os: [ubuntu-latest]
 
     steps:
       - name: checkout
@@ -429,15 +472,32 @@ jobs:
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
+        uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
         uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}
           restore-keys: |
             ${{ runner.os }}-pip-
@@ -461,7 +521,7 @@ jobs:
           # python -m pylint --limit-inference-results=1 --rcfile=.pylintrc zope.hookable -f parseable -r n
 
   manylinux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     # We use a regular Python matrix entry to share as much code as possible.
     strategy:
@@ -482,15 +542,32 @@ jobs:
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
+        uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: ${{ runner.os }}-pip_manylinux-${{ matrix.image }}-${{ matrix.python-version }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
         uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: ${{ runner.os }}-pip_manylinux-${{ matrix.image }}-${{ matrix.python-version }}
           restore-keys: |
             ${{ runner.os }}-pip-
@@ -528,7 +605,7 @@ jobs:
           path: wheelhouse/*whl
           name: manylinux_${{ matrix.image }}_wheels.zip
       - name: Restore pip cache permissions
-        run: sudo chown -R $(whoami) ${{ steps.pip-cache.outputs.dir }}
+        run: sudo chown -R $(whoami) ${{ steps.pip-cache-default.outputs.dir }}
       - name: Publish package to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
         if: >
diff --git a/.meta.toml b/.meta.toml
index d8f0858..3a08f37 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,11 +2,11 @@
 # https://github.com/zopefoundation/meta/tree/master/config/c-code
 [meta]
 template = "c-code"
-commit-id = "1351c95d"
+commit-id = "899fc875"
 
 [python]
 with-appveyor = true
-with-windows = false
+with-windows = true
 with-pypy = true
 with-future-python = true
 with-docs = true
diff --git a/CHANGES.rst b/CHANGES.rst
index 94e6298..9f21b60 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -7,6 +7,8 @@
 
 - Add preliminary support for Python 3.13 as of 3.13a5.
 
+- Build windows wheels on GHA.
+
 6.0 (2023-10-05)
 ================
 
diff --git a/MANIFEST.in b/MANIFEST.in
index a86c4ea..a97edc2 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -5,7 +5,6 @@ include *.rst
 include *.txt
 include buildout.cfg
 include tox.ini
-include appveyor.yml
 include .coveragerc
 
 recursive-include docs *.py
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 553ee21..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-# Generated from:
-# https://github.com/zopefoundation/meta/tree/master/config/c-code
-environment:
-  # Currently the builds use @mgedmin's Appveyor account.  The PyPI token belongs
-  # to zope.wheelbuilder, which is managed by @mgedmin and @dataflake.
-  global:
-    TWINE_USERNAME: __token__
-    TWINE_PASSWORD:
-      secure: aoZC/+rvJKg8B5GMGIxd1VVAqNNBjVQeFnBhHb5CSR6SETwd7qeNIP92xgZA2hhgiZH3KVFYEID+OR7j6TTVLVZLHP3EXKP+/sccqPjs3DDgDKuGjU5iovqpJnXiTPNI1LlGqUMM7neCvljjLkcW1InVbygB5p/V1YE8Zs8PjZ8j7Ny84EalvWprAO/xB1hawCIydi1bpq0WZbw8H+IvmDYYkVa1jgSBfHhsA3/S7943QWzPCRtUPuIXziAhdMUgnhj/1N/RPXRMYoNG/Se5Kg==
-
-  matrix:
-    - python: 37-x64
-    - python: 38-x64
-    - python: 39-x64
-    - python: 310-x64
-    - python: 311-x64
-    - python: 312-x64
-    # `multibuild` cannot install non-final versions as they are not on
-    # ftp.python.org, so we skip Python 3.13 until its final release:
-    # - python: 313-x64
-
-install:
-  - "SET PYTHONVERSION=%PYTHON%"
-  - "SET PATH=C:\\Python%PYTHON%;c:\\Python%PYTHON%\\scripts;%PATH%"
-  - ps: |
-      $env:PYTHON = "C:\\Python${env:PYTHON}"
-      if (-not (Test-Path $env:PYTHON)) {
-        curl -o install_python.ps1 https://raw.githubusercontent.com/matthew-brett/multibuild/11a389d78892cf90addac8f69433d5e22bfa422a/install_python.ps1
-        .\install_python.ps1
-      }
-  - ps: if (-not (Test-Path $env:PYTHON)) { throw "No $env:PYTHON" }
-  - echo "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64 > "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\vcvars64.bat"
-  - python -m pip install -U pip
-  - pip install -U setuptools wheel
-  - pip install -U -e .[test]
-
-matrix:
-  fast_finish: true
-
-build_script:
-  - python -W ignore setup.py -q bdist_wheel
-
-test_script:
-  - zope-testrunner --test-path=src
-artifacts:
-  - path: 'dist\*.whl'
-    name: wheel
-
-deploy_script:
-  - ps: if ($env:APPVEYOR_REPO_TAG -eq $TRUE) { pip install twine; twine upload --skip-existing dist\*.whl }
-
-deploy: on