diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index e709961..d9d8640 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -5,7 +5,7 @@ jobs:
   #   runs-on: ubuntu-latest
   #   strategy:
   #     matrix:
-  #       python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+  #       python-version: ['3.8', '3.9', '3.10', '3.11']
   #   steps:
   #     - uses: actions/checkout@v2
   #     - name: Set up Python ${{ matrix.python-version }}
@@ -41,17 +41,20 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
       - uses: actions/checkout@v2
       # Install nmake
       - uses: ilammy/msvc-dev-cmd@v1
-      - name: Build CLIPS
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Build CLIPSPy
         run: |
-          nmake clips
-      - name: Build Python packages
-        run: |
-          python setup.py build_ext --include-dirs= --library-dirs
-      - name: Build Python wheels
-        run: |
-          python setup.py sdist bdist_wheel
+          nmake /F Makefile.win
+      - name: Store build artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: windows-build
+          path: dist/
diff --git a/Makefile.win b/Makefile.win
new file mode 100644
index 0000000..da41e6a
--- /dev/null
+++ b/Makefile.win
@@ -0,0 +1,24 @@
+# vim: tabstop=8
+PYTHON             = python
+CLIPS_VERSION      = 6.41
+CLIPS_SOURCE_URL   = "https://sourceforge.net/projects/clipsrules/files/CLIPS/6.4.1/clips_core_source_641.zip"
+
+.PHONY: clips_source clips clipspy
+
+all: clips_source clips clipspy
+
+clips_source:
+    curl --output clips.zip --location --url $(CLIPS_SOURCE_URL)
+    mkdir clips_source
+    tar -xf clips.zip -C clips_source --strip-components=1
+
+clips: clips_source
+    (cd clips_source/core/ && nmake /F makefile.win)
+
+clipspy: clips
+    python setup.py build_ext --include-dirs=clips_source/core/ --library-dirs=clips_source/core/
+    python setup.py sdist bdist_wheel
+
+clean:
+    -del clips.zip
+    -rd /s /q clips_source build dist clipspy.egg-info