diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 2c28b44..eef60e1 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -45,6 +45,37 @@ jobs:
         with:
           files: |
             ./wheelhouse/**
+  build_windows:
+    name: Build wheels on windows-latest ${{ matrix.python }}
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        python: [ cp38-*, cp39-*, cp310-*, cp311-*, cp312-*, cp313-* ]
+    steps:
+      - uses: actions/checkout@v4
+      # Used to host cibuildwheel
+      - uses: actions/setup-python@v4
+        with:
+          python-version: |
+            3.11
+      - name: Install cibuildwheel
+        run: python -m pip install cibuildwheel==2.21.3
+      - name: Build wheels
+        env:
+          CIBW_BUILD: ${{ matrix.python }}
+          CIBW_BEFORE_BUILD: python -m pip install pip Cython ninja --upgrade
+          CIBW_ARCHS_WINDOWS: AMD64
+          CIBW_SKIP: pp*
+        run: python -m cibuildwheel --output-dir wheelhouse
+      - name: Install dependencies
+        run: python -m pip install setuptools wheel twine
+      - name: Publish to PyPI
+        run: twine upload -u __token__ -p ${{ secrets.PYPI_ACCESS_TOKEN }} ./wheelhouse/*
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            ./wheelhouse/**
   build_mac:
     name: Build wheels on macos-14
     runs-on: macos-14
diff --git a/_custom_build.py b/_custom_build.py
index aff3436..d31bc2d 100644
--- a/_custom_build.py
+++ b/_custom_build.py
@@ -57,29 +57,39 @@ def build_cmake(self, ext):
 
         config = 'Debug' if self.debug else 'Release'
         num_cpus = 4
+        try:
+            num_cpus = multiprocessing.cpu_count()
+        except NotImplementedError:
+            pass
+        
         if os.name == "posix":
-            try:
-                num_cpus = multiprocessing.cpu_count()
-            except NotImplementedError:
-                pass
             CMAKE_GENERATOR = "Unix Makefiles"
+            cmake_args = [
+                '-G', CMAKE_GENERATOR,
+                f'-DCMAKE_BUILD_TYPE={config}',
+                str(Path(ext.name).absolute())  # src directory path
+            ]
+            build_args = [
+                '--config', config,
+                '--', f'-j{num_cpus}'
+            ]
         elif os.name == "nt":
-            CMAKE_GENERATOR = "MinGW Makefiles"
+            # On Windows, use Ninja or Visual Studio generator
+            # Ninja is preferred for better compatibility with cibuildwheel
+            CMAKE_GENERATOR = "Ninja"
+            cmake_args = [
+                '-G', CMAKE_GENERATOR,
+                f'-DCMAKE_BUILD_TYPE={config}',
+                str(Path(ext.name).absolute())  # src directory path
+            ]
+            build_args = [
+                '--config', config,
+                '--parallel', str(num_cpus)
+            ]
         else:
             print("Unsupported OS: " + os.name)
             sys.exit(1)
 
-        cmake_args = [
-            '-G', CMAKE_GENERATOR,
-            f'-DCMAKE_BUILD_TYPE={config}',
-            Path(ext.name).absolute()  # src directory path
-        ]
-
-        build_args = [
-            '--config', config,
-            '--', f'-j{num_cpus}'
-        ]
-
         os.chdir(str(build_temp))
         self.spawn(['cmake', str(cwd)] + cmake_args)
         if not self.dry_run:
diff --git a/src/search/bliss/timer.cc b/src/search/bliss/timer.cc
index 070f1a1..fbb26b6 100644
--- a/src/search/bliss/timer.cc
+++ b/src/search/bliss/timer.cc
@@ -1,5 +1,9 @@
+#ifdef _WIN32
+#include <windows.h>
+#else
 #include <unistd.h>
 #include <sys/times.h>
+#endif
 #include "timer.h"
 
 /*
@@ -24,6 +28,47 @@
 
 namespace bliss {
 
+#ifdef _WIN32
+// Windows implementation using GetProcessTimes
+Timer::Timer()
+{
+  reset();
+}
+
+void Timer::reset()
+{
+  FILETIME creationTime, exitTime, kernelTime, userTime;
+  if (GetProcessTimes(GetCurrentProcess(), &creationTime, &exitTime, &kernelTime, &userTime)) {
+    ULARGE_INTEGER kt, ut;
+    kt.LowPart = kernelTime.dwLowDateTime;
+    kt.HighPart = kernelTime.dwHighDateTime;
+    ut.LowPart = userTime.dwLowDateTime;
+    ut.HighPart = userTime.dwHighDateTime;
+    // Convert 100-nanosecond intervals to seconds
+    start_time = (double)(kt.QuadPart + ut.QuadPart) / 10000000.0;
+  } else {
+    start_time = 0.0;
+  }
+}
+
+double Timer::get_duration()
+{
+  FILETIME creationTime, exitTime, kernelTime, userTime;
+  if (GetProcessTimes(GetCurrentProcess(), &creationTime, &exitTime, &kernelTime, &userTime)) {
+    ULARGE_INTEGER kt, ut;
+    kt.LowPart = kernelTime.dwLowDateTime;
+    kt.HighPart = kernelTime.dwHighDateTime;
+    ut.LowPart = userTime.dwLowDateTime;
+    ut.HighPart = userTime.dwHighDateTime;
+    // Convert 100-nanosecond intervals to seconds
+    double current_time = (double)(kt.QuadPart + ut.QuadPart) / 10000000.0;
+    return current_time - start_time;
+  }
+  return 0.0;
+}
+
+#else
+// Unix/Linux implementation using times()
 static const double numTicksPerSec = (double)(sysconf(_SC_CLK_TCK));
 
 Timer::Timer()
@@ -52,5 +97,6 @@ double Timer::get_duration()
     numTicksPerSec;
   return intermediate - start_time;
 }
+#endif
 
 } // namespace bliss