diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3b1e272..23e2616 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,113 +14,166 @@ on:
       - master
 
 jobs:
-  build:
-    name: build / php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.compiler }}
-
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        php: [ '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
-
-        name:
-          - linux
-          - debian
-          - mac
-
-        include:
-          # Linux
-          - { name: linux,  ts: 'nts', compiler: 'gcc',   os: ubuntu-20.04 }
-          # Debian (docker)
-          - { name: debian, ts: 'nts', compiler: 'gcc',   os: ubuntu-20.04 }
-          # macOS
-          - { name: mac,    ts: 'nts', compiler: 'clang', os: macos-13 }
-
-    steps:
-      - uses: actions/checkout@v3
-
-      # configure spx artifact name in next format:
-      #   {php}-{ts}-{os.name}-{compiler}
-      #   spx-php-8.1-nts-linux-gcc
-      - name: Set artifact name
-        id: setup-artifact
-        run: |
-          echo "spx_file_name=spx-php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.compiler }}" >> $GITHUB_OUTPUT
-
-      - name: Build extension for Ubuntu and macOS
-        if: matrix.name != 'debian'
-        uses: ./.github/workflows/build-linux-mac-ext
-
-      - name: Build extension for Debian using docker
-        if: matrix.name == 'debian' && matrix.php != '5.4' && matrix.php != '5.5'
-        uses: ./.github/workflows/build-debian-ext
-
-      - name: Upload build artifacts after Failure
-        if: failure()
-        uses: actions/upload-artifact@v3
-        with:
-          name: debug-${{ steps.setup-artifact.outputs.spx_file_name }}
-          path: |
-            ${{ github.workspace }}/*.log
-            ${{ github.workspace }}/tests/*.log
-          retention-days: 7
-
-      - name: Create ZIP archive with build artifact
-        run: |
-          zip -rvj ${{ steps.setup-artifact.outputs.spx_file_name }}.zip \
-            ./modules/spx.so LICENSE $ZIP_EXCLUDE
-          zip -rv ${{ steps.setup-artifact.outputs.spx_file_name }}.zip \
-            ./assets $ZIP_EXCLUDE
-        env:
-          ZIP_EXCLUDE: -x ".*" -x "__MACOSX" -x "*.DS_Store"
-
-      - name: Check Release notes
-        run: |
-          echo "-- Parsing Release Notes from CHANGELOG"
-          ./.github/release-notes.sh ./CHANGELOG.md
-
-      - name: Upload build artifact
-        uses: actions/upload-artifact@v3
-        with:
-          name: ${{ steps.setup-artifact.outputs.spx_file_name }}.zip
-          path: ${{ steps.setup-artifact.outputs.spx_file_name }}.zip
-
-  release:
-    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
-
-    needs: [ build ]
-    name: Create Release
-    runs-on: ubuntu-20.04
-
+  # build:
+  #   name: build / php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.compiler }}
+
+  #   runs-on: ${{ matrix.os }}
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       php: [ '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
+
+  #       name:
+  #         - linux
+  #         - debian
+  #         - mac
+
+  #       include:
+  #         # Linux
+  #         - { name: linux,  ts: 'nts', compiler: 'gcc',   os: ubuntu-20.04 }
+  #         # Debian (docker)
+  #         - { name: debian, ts: 'nts', compiler: 'gcc',   os: ubuntu-20.04 }
+  #         # macOS
+  #         - { name: mac,    ts: 'nts', compiler: 'clang', os: macos-13 }
+
+  #   steps:
+  #     - uses: actions/checkout@v3
+
+  #     # configure spx artifact name in next format:
+  #     #   {php}-{ts}-{os.name}-{compiler}
+  #     #   spx-php-8.1-nts-linux-gcc
+  #     - name: Set artifact name
+  #       id: setup-artifact
+  #       run: |
+  #         echo "spx_file_name=spx-php-${{ matrix.php }}-${{ matrix.ts }}-${{ matrix.name }}-${{ matrix.compiler }}" >> $GITHUB_OUTPUT
+
+  #     - name: Build extension for Ubuntu and macOS
+  #       if: matrix.name != 'debian'
+  #       uses: ./.github/workflows/build-linux-mac-ext
+
+  #     - name: Build extension for Debian using docker
+  #       if: matrix.name == 'debian' && matrix.php != '5.4' && matrix.php != '5.5'
+  #       uses: ./.github/workflows/build-debian-ext
+
+  #     - name: Upload build artifacts after Failure
+  #       if: failure()
+  #       uses: actions/upload-artifact@v3
+  #       with:
+  #         name: debug-${{ steps.setup-artifact.outputs.spx_file_name }}
+  #         path: |
+  #           ${{ github.workspace }}/*.log
+  #           ${{ github.workspace }}/tests/*.log
+  #         retention-days: 7
+
+  #     - name: Create ZIP archive with build artifact
+  #       run: |
+  #         zip -rvj ${{ steps.setup-artifact.outputs.spx_file_name }}.zip \
+  #           ./modules/spx.so LICENSE $ZIP_EXCLUDE
+  #         zip -rv ${{ steps.setup-artifact.outputs.spx_file_name }}.zip \
+  #           ./assets $ZIP_EXCLUDE
+  #       env:
+  #         ZIP_EXCLUDE: -x ".*" -x "__MACOSX" -x "*.DS_Store"
+
+  #     - name: Check Release notes
+  #       run: |
+  #         echo "-- Parsing Release Notes from CHANGELOG"
+  #         ./.github/release-notes.sh ./CHANGELOG.md
+
+  #     - name: Upload build artifact
+  #       uses: actions/upload-artifact@v3
+  #       with:
+  #         name: ${{ steps.setup-artifact.outputs.spx_file_name }}.zip
+  #         path: ${{ steps.setup-artifact.outputs.spx_file_name }}.zip
+
+  # build-win-old:
+  #   # FIXME this hacky pipeline will be cleaned later
+  #   runs-on: windows-latest
+  #   steps:
+  #     - name: Install zlib
+  #       run: |
+  #         vcpkg.exe install zlib
+  #     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+  #     - uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0
+  #     - name: Setup PHP SDK with Developer Pack
+  #       uses: zephir-lang/setup-php-sdk@fd5f1bce00956a7e8ac30faaa1ff0692d6dacdfb # v1.0
+  #       with:
+  #         php_version: '8.3'
+  #         ts: 'nts'
+  #         msvc: 'vs16'
+  #         arch: 'x64'
+  #         install_dir: 'C:\tools'
+  #         cache_dir: 'C:\Temp'
+  #     - name: Clone PHP-src
+  #       run: |
+  #         git clone https://github.com/php/php-src.git C:\php-src
+  #     - name: Copy SPX to PHP-src ext directory
+  #       run: |
+  #         xcopy  /e /k /h /i . C:\php-src\ext\php-spx
+  #     - name: Configure and build 1
+  #       run: |
+  #         cd C:\php-src
+  #         ./buildconf.bat
+  #     - name: Configure and build 2
+  #       run: |
+  #         cd C:\php-src
+  #         ./configure --help
+  #         ./configure --disable-all --enable-cli --enable-spx
+  #     - name: Configure and build 3
+  #       run: |
+  #         cd C:\php-src
+  #         nmake
+
+  build-win:
+    runs-on: windows-latest
     steps:
-      - name: Checkout Code
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 1
-
-      - name: Get the release version
-        id: get-version
-        run: |
-          echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
-
-      - name: Download SPX build artifacts
-        id: download
-        uses: actions/download-artifact@v4.1.7
-        with:
-          path: ./build-artifacts
-
-      - name: Prepare Release notes
-        run: |
-          echo "-- Creating Release Notes"
-          ./.github/release-notes.sh ./CHANGELOG.md > ./release-notes.md
-
-      - name: Create Release
-        uses: ncipollo/release-action@v1
+      - name: Build the extension
+        uses: php/php-windows-builder/extension@5106db21e6a35781bff937be3c9e1e56d7b17789
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          name: ${{ steps.get-version.outputs.version }}
-          tag: ${{ steps.get-version.outputs.version }}
-          bodyFile: "./release-notes.md"
-          allowUpdates: true
-          artifacts: "./build-artifacts/*/*.zip"
-          artifactContentType: application/octet-stream
+          #extension-url: https://github.com/xdebug/xdebug
+          #extension-ref: '3.3.1'
+          php-version: '8.3'
+          ts: nts
+          run-tests: false
+          arch: x64
+          args: --enable-spx
+          libs: zlib
+
+  # release:
+  #   if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+
+  #   needs: [ build ]
+  #   name: Create Release
+  #   runs-on: ubuntu-20.04
+
+  #   steps:
+  #     - name: Checkout Code
+  #       uses: actions/checkout@v3
+  #       with:
+  #         fetch-depth: 1
+
+  #     - name: Get the release version
+  #       id: get-version
+  #       run: |
+  #         echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+
+  #     - name: Download SPX build artifacts
+  #       id: download
+  #       uses: actions/download-artifact@v4.1.7
+  #       with:
+  #         path: ./build-artifacts
+
+  #     - name: Prepare Release notes
+  #       run: |
+  #         echo "-- Creating Release Notes"
+  #         ./.github/release-notes.sh ./CHANGELOG.md > ./release-notes.md
+
+  #     - name: Create Release
+  #       uses: ncipollo/release-action@v1
+  #       with:
+  #         token: ${{ secrets.GITHUB_TOKEN }}
+  #         name: ${{ steps.get-version.outputs.version }}
+  #         tag: ${{ steps.get-version.outputs.version }}
+  #         bodyFile: "./release-notes.md"
+  #         allowUpdates: true
+  #         artifacts: "./build-artifacts/*/*.zip"
+  #         artifactContentType: application/octet-stream
diff --git a/Makefile.frag.w32 b/Makefile.frag.w32
new file mode 100644
index 0000000..d916828
--- /dev/null
+++ b/Makefile.frag.w32
@@ -0,0 +1,11 @@
+
+spx_ui_assets_dir = $(INSTALL_ROOT)$(prefix)\php-spx\assets\web-ui
+
+CFLAGS += /DSPX_HTTP_UI_ASSETS_DIR=\"$(spx_ui_assets_dir)\"
+
+install-spx-ui-assets:
+	@echo "Installing SPX web UI to: $(spx_ui_assets_dir)"
+	@mkdir -p $(spx_ui_assets_dir)
+	@cp -r assets/web-ui/* $(spx_ui_assets_dir)
+
+install: $(all_targets) $(install_targets) install-spx-ui-assets
diff --git a/README.md b/README.md
index 6e00582..d4d202e 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Build Status][:badge-ci:]][:link-ci:]
 ![Supported PHP versions: 5.4 .. 8.x][:badge-php-versions:]
-![Supported platforms: GNU/Linux, macOS & FreeBSD][:badge-supported-platforms:]
+![Supported platforms: Linux, macOS, FreeBSD & Windows][:badge-supported-platforms:]
 ![Supported architectures: x86-64 or ARM64][:badge-supported-arch:]
 [![License][:badge-license:]][:link-license:]
 
@@ -34,12 +34,8 @@ It differentiates itself from other similar extensions as being:
 
 ## Requirements
 
-Platforms support is currently quite limited. Feel free to open an issue if your platform is not supported.
-Current requirements are:
-
 * x86-64 or ARM64
-* **GNU/Linux**, **macOS** or **FreeBSD**
-* zlib dev package (e.g. zlib1g-dev on Debian based distros)
+* **Linux**, **macOS**, **FreeBSD** or **Windows**
 * PHP 5.4 to 8.4
 
 ## Installation
@@ -66,6 +62,12 @@ sudo make install
 Then add `extension=spx.so` to your *php.ini*, or in a dedicated *spx.ini* file created within the include directory.
 You may also want to override [default SPX configuration](#configuration) to be able to profile a web request, with [this one](#private-environment) for example for a local development environment.
 
+### Windows
+
+Windows is supported, with these extra limitations:
+- live update of flat profile in CLI (`SPX_FP_LIVE=1`) is not supported.
+
+Also, consider Windows support as still being in beta.
 
 ### ZTS PHP (multi-thread)
 
@@ -78,7 +80,7 @@ Also, consider ZTS PHP support as still being in beta.
 
 ### Linux, PHP-FPM & I/O stats
 
-On GNU/Linux, SPX uses procfs (i.e. by reading files under `/proc` directory) to get some stats for the current process or thread. This is what is done under the hood when you select at least one of these metrics: `mor`, `io`, `ior` or `iow`.
+On Linux, SPX uses procfs (i.e. by reading files under `/proc` directory) to get some stats for the current process or thread. This is what is done under the hood when you select at least one of these metrics: `mor`, `io`, `ior` or `iow`.
 
 But, on most PHP-FPM setups, you will have a permission issue preventing SPX to open a file under `/proc/self` directory.
 This is due to the fact that PHP-FPM master process runs as root when child processes run as another unprivileged user.
@@ -315,7 +317,7 @@ Here is the list of available metrics to collect. By default only _Wall time_ an
 
 _\*: Allocated and freed byte counts will not be collected if you use a custom allocator or if you force the libc one through the `USE_ZEND_ALLOC` environment variable set to `0`._
 
-_\*\*: RSS & I/O metrics are not supported on macOS and FreeBSD. On GNU/Linux you should [read this if you use PHP-FPM](#linux-php-fpm--io-stats)._
+_\*\*: RSS & I/O metrics are not supported on macOS and FreeBSD. On Linux you should [read this if you use PHP-FPM](#linux-php-fpm--io-stats)._
 
 ### Command line script
 
@@ -504,7 +506,7 @@ See the [LICENSE][:link-license:] file for more information.
 [:link-ci:]:            https://github.com/NoiseByNorthwest/php-spx/actions/workflows/main.yml
 
 [:badge-php-versions:]: https://img.shields.io/badge/php-5.4--8.4-blue.svg
-[:badge-supported-platforms:]: https://img.shields.io/badge/platform-GNU/Linux%20|%20macOS%20|%20FreeBSD%20-yellow
+[:badge-supported-platforms:]: https://img.shields.io/badge/platform-Linux%20|%20macOS%20|%20FreeBSD%20-yellow
 [:badge-supported-arch:]: https://img.shields.io/badge/architecture-x86--64%20|%20ARM64%20-silver
 
 [:badge-license:]:      https://img.shields.io/github/license/NoiseByNorthwest/php-spx
diff --git a/config.w32 b/config.w32
new file mode 100644
index 0000000..d6cc0f5
--- /dev/null
+++ b/config.w32
@@ -0,0 +1,40 @@
+ARG_ENABLE("spx", "Enable SPX extension", "no");
+
+ARG_ENABLE("spx-dev", "Compile SPX with debugging symbols", "no");
+
+if (PHP_SPX == "yes") {
+    AC_DEFINE("HAVE_SPX", 1, "spx");
+
+    ADD_FLAG("CFLAGS", "/Ox /Wall /WX /W2 /wd4820 /wd4774 /wd4711 /wd4710 /wd4464 /wd4005");
+
+    if (PHP_SPX_DEV == "yes") {
+        ADD_FLAG("CFLAGS", "/Zi");
+    }
+
+    if (
+        ! CHECK_LIB("zlib_a.lib;zlib.lib", "zlib", PHP_ZLIB) ||
+        ! CHECK_HEADER_ADD_INCLUDE("zlib.h", "CFLAGS", "..\\zlib;" + php_usual_include_suspects)
+    ) {
+        ERROR("zlib not found");
+    }
+
+    EXTENSION("spx", "src/php_spx.c \
+        src/spx_profiler.c \
+        src/spx_profiler_tracer.c \
+        src/spx_profiler_sampler.c \
+        src/spx_reporter_full.c \
+        src/spx_reporter_fp.c \
+        src/spx_reporter_trace.c \
+        src/spx_metric.c \
+        src/spx_resource_stats.c \
+        src/spx_hmap.c \
+        src/spx_str_builder.c \
+        src/spx_output_stream.c \
+        src/spx_php.c \
+        src/spx_stdio.c \
+        src/spx_config.c \
+        src/spx_utils.c \
+        src/spx_fmt.c", true);
+
+    ADD_MAKEFILE_FRAGMENT();
+}
diff --git a/src/php_spx.c b/src/php_spx.c
index f5a88b4..02276f9 100644
--- a/src/php_spx.c
+++ b/src/php_spx.c
@@ -17,9 +17,8 @@
 
 
 #include <stdio.h>
-#include <unistd.h>
 
-#ifndef ZTS
+#if ! defined(ZTS) && ! defined(_WIN32)
 #   define USE_SIGNAL
 #endif
 
@@ -215,7 +214,7 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_spx_profiler_stop, 0, 0, 0)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_spx_profiler_full_report_set_custom_metadata_str, 0, 0, 1)
-#if PHP_API_VERSION >= 20151012
+#if ZEND_MODULE_API_NO >= 20151012
     ZEND_ARG_TYPE_INFO(0, customMetadataStr, IS_STRING, 0)
 #else
     ZEND_ARG_INFO(0, customMetadataStr)
@@ -437,7 +436,7 @@ static PHP_FUNCTION(spx_profiler_stop)
     profiling_handler_stop();
 
     if (context.profiling_handler.full_report_key[0]) {
-#if PHP_API_VERSION >= 20151012
+#if ZEND_MODULE_API_NO >= 20151012
         RETURN_STRING(context.profiling_handler.full_report_key);
 #else
         RETURN_STRING(context.profiling_handler.full_report_key, 1);
@@ -448,13 +447,13 @@ static PHP_FUNCTION(spx_profiler_stop)
 static PHP_FUNCTION(spx_profiler_full_report_set_custom_metadata_str)
 {
     char * custom_metadata_str;
-#if PHP_API_VERSION >= 20151012
+#if ZEND_MODULE_API_NO >= 20151012
     size_t custom_metadata_str_len;
 #else
     int custom_metadata_str_len;
 #endif
 
-#if PHP_API_VERSION >= 20170718
+#if ZEND_MODULE_API_NO >= 20170718
     ZEND_PARSE_PARAMETERS_START(1, 1)
         Z_PARAM_STRING(custom_metadata_str, custom_metadata_str_len)
     ZEND_PARSE_PARAMETERS_END();
diff --git a/src/php_spx.h b/src/php_spx.h
index 1a68449..2e7ee71 100644
--- a/src/php_spx.h
+++ b/src/php_spx.h
@@ -23,11 +23,11 @@
 #include "main/php.h"
 
 /* linux 2.6+ or OSX */
-#if !defined(linux) && !(defined(__APPLE__) && defined(__MACH__)) && !defined(__FreeBSD__)
-#   error "Only Linux-based OSes, Apple MacOS and FreeBSD are supported"
+#if !defined(linux) && !(defined(__APPLE__) && defined(__MACH__)) && !defined(__FreeBSD__) && !defined(_WIN32)
+#   error "Only Linux-based OSes, Apple MacOS, FreeBSD and Windows are supported"
 #endif
 
-#if !defined(__x86_64__) && !defined(__aarch64__)
+#if (defined(_MSC_VER) && !(defined(_M_X64) || defined(_M_ARM64))) || (!defined(_MSC_VER) && !(defined(__x86_64__) || defined(__aarch64__)))
 #   error "Only x86-64 and ARM64 architectures are supported"
 #endif
 
diff --git a/src/spx_fmt.c b/src/spx_fmt.c
index 526f77c..de9051e 100644
--- a/src/spx_fmt.c
+++ b/src/spx_fmt.c
@@ -190,13 +190,13 @@ void spx_fmt_row_print(const spx_fmt_row_t * row, spx_output_stream_t * output)
         ;
 
         if (row->cells[i].ansi_fmt) {
-            spx_output_stream_printf(output, "\e[%sm", row->cells[i].ansi_fmt);
+            spx_output_stream_printf(output, "%c[%sm", 0x1b, row->cells[i].ansi_fmt);
         }
 
         snprintf(
             format,
             sizeof(format),
-            "%%-%lu.%lus",
+            "%%-%zu.%zus",
             cell_width,
             cell_width
         );
@@ -204,7 +204,7 @@ void spx_fmt_row_print(const spx_fmt_row_t * row, spx_output_stream_t * output)
         spx_output_stream_printf(output, format, text);
 
         if (row->cells[i].ansi_fmt) {
-            spx_output_stream_print(output, "\e[0m");
+            spx_output_stream_printf(output, "%c[0m", 0x1b);
         }
 
         spx_output_stream_print(output, " |");
diff --git a/src/spx_hmap.h b/src/spx_hmap.h
index 4845b5b..383b2e2 100644
--- a/src/spx_hmap.h
+++ b/src/spx_hmap.h
@@ -19,10 +19,12 @@
 #ifndef SPX_HMAP_H_DEFINED
 #define SPX_HMAP_H_DEFINED
 
+#include <stdint.h>
+
 typedef struct spx_hmap_t spx_hmap_t;
 typedef struct spx_hmap_entry_t spx_hmap_entry_t;
 
-typedef unsigned long (*spx_hmap_hash_key_func_t) (const void *);
+typedef uint64_t (*spx_hmap_hash_key_func_t) (const void *);
 typedef int (*spx_hmap_cmp_key_func_t) (const void *, const void *);
 
 spx_hmap_t * spx_hmap_create(
diff --git a/src/spx_php.c b/src/spx_php.c
index f68ca64..b087ae1 100644
--- a/src/spx_php.c
+++ b/src/spx_php.c
@@ -15,9 +15,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-
 #include "main/php.h"
 #include "main/SAPI.h"
+#if defined(_WIN32) && ZEND_MODULE_API_NO >= 20170718
+#   include "win32/console.h"
+#endif
 
 /* _GNU_SOURCE is implicitly defined since PHP 8.2 https://github.com/php/php-src/pull/8807 */
 #ifndef _GNU_SOURCE
@@ -91,14 +93,14 @@ static struct {
 
     zend_op_array * (*zend_compile_file)(zend_file_handle * file_handle, int type TSRMLS_DC);
     zend_op_array * (*zend_compile_string)(
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
         zend_string * source_string,
         const
 #else
         zval * source_string,
 #endif
         char * filename
-#if PHP_API_VERSION >= 20210903
+#if ZEND_MODULE_API_NO >= 20210903
         , zend_compile_position position
 #endif
         TSRMLS_DC
@@ -110,13 +112,13 @@ static struct {
 
     void (*zend_error_cb) (
         int type,
-#if PHP_API_VERSION >= 20210902
+#if ZEND_MODULE_API_NO >= 20210902
         zend_string *error_filename,
 #else
         const char *error_filename,
 #endif
         const uint error_lineno,
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
         zend_string *message
 #else
         const char *format,
@@ -201,14 +203,14 @@ static void global_hook_execute_internal(
 
 static zend_op_array * global_hook_zend_compile_file(zend_file_handle * file_handle, int type TSRMLS_DC);
 static zend_op_array * global_hook_zend_compile_string(
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
     zend_string * source_string,
     const
 #else
     zval * source_string,
 #endif
     char * filename
-#if PHP_API_VERSION >= 20210903
+#if ZEND_MODULE_API_NO >= 20210903
     , zend_compile_position position
 #endif
         TSRMLS_DC
@@ -220,13 +222,13 @@ static int global_hook_gc_collect_cycles(void);
 
 static void global_hook_zend_error_cb(
     int type,
-#if PHP_API_VERSION >= 20210902
+#if ZEND_MODULE_API_NO >= 20210902
     zend_string *error_filename,
 #else
     const char *error_filename,
 #endif
     const uint error_lineno,
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
     zend_string *message
 #else
     const char *format,
@@ -243,6 +245,17 @@ int spx_php_is_cli_sapi(void)
     return 0 == strcmp(sapi_module.name, "cli");
 }
 
+int spx_php_are_ansi_sequences_supported(void)
+{
+    return
+        spx_php_is_cli_sapi()
+            && isatty(STDOUT_FILENO)
+#if defined(_WIN32) && ZEND_MODULE_API_NO >= 20170718
+            && php_win32_console_fileno_has_vt100(STDOUT_FILENO)
+#endif
+    ;
+}
+
 void spx_php_current_function(spx_php_function_t * function)
 {
     TSRMLS_FETCH();
@@ -1207,14 +1220,14 @@ static zend_op_array * global_hook_zend_compile_file(zend_file_handle * file_han
 }
 
 static zend_op_array * global_hook_zend_compile_string(
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
     zend_string * source_string,
     const
 #else
     zval * source_string,
 #endif
     char * filename
-#if PHP_API_VERSION >= 20210903
+#if ZEND_MODULE_API_NO >= 20210903
     , zend_compile_position position
 #endif
         TSRMLS_DC
@@ -1223,7 +1236,7 @@ static zend_op_array * global_hook_zend_compile_string(
         return ze_hooked_func.zend_compile_string(
             source_string,
             filename
-#if PHP_API_VERSION >= 20210903
+#if ZEND_MODULE_API_NO >= 20210903
             , position
 #endif
             TSRMLS_CC
@@ -1243,7 +1256,7 @@ static zend_op_array * global_hook_zend_compile_string(
     zend_op_array * op_array = ze_hooked_func.zend_compile_string(
         source_string,
         filename
-#if PHP_API_VERSION >= 20210903
+#if ZEND_MODULE_API_NO >= 20210903
         , position
 #endif
         TSRMLS_CC
@@ -1305,13 +1318,13 @@ static int global_hook_gc_collect_cycles(void)
 
 static void global_hook_zend_error_cb(
     int type,
-#if PHP_API_VERSION >= 20210902
+#if ZEND_MODULE_API_NO >= 20210902
     zend_string *error_filename,
 #else
     const char *error_filename,
 #endif
     const uint error_lineno,
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
     zend_string *message
 #else
     const char *format,
@@ -1323,7 +1336,7 @@ static void global_hook_zend_error_cb(
             type,
             error_filename,
             error_lineno,
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
             message
 #else
             format,
@@ -1343,7 +1356,7 @@ static void global_hook_zend_error_cb(
         type,
         error_filename,
         error_lineno,
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
         message
 #else
         format,
diff --git a/src/spx_php.h b/src/spx_php.h
index b8bbe39..6e94c35 100644
--- a/src/spx_php.h
+++ b/src/spx_php.h
@@ -19,12 +19,15 @@
 #ifndef SPX_PHP_H_DEFINED
 #define SPX_PHP_H_DEFINED
 
+#include "main/php.h"
+
+
 /*
 	TSRMLS_* macros, which were deprecated since PHP7, are removed in PHP8.
 	More details here:
 	https://github.com/php/php-src/blob/PHP-8.0/UPGRADING.INTERNALS#L50
 */
-#if PHP_API_VERSION >= 20200930
+#if ZEND_MODULE_API_NO >= 20200930
 #define TSRMLS_CC
 #define TSRMLS_C
 #define TSRMLS_DC
@@ -33,13 +36,14 @@
 #endif
 
 typedef struct {
-    unsigned long hash_code;
+    uint64_t hash_code;
 
     const char * func_name;
     const char * class_name;
 } spx_php_function_t;
 
 int spx_php_is_cli_sapi(void);
+int spx_php_are_ansi_sequences_supported(void);
 
 void spx_php_current_function(spx_php_function_t * function);
 
diff --git a/src/spx_profiler_tracer.c b/src/spx_profiler_tracer.c
index 085b80b..0197747 100644
--- a/src/spx_profiler_tracer.c
+++ b/src/spx_profiler_tracer.c
@@ -32,34 +32,34 @@
 
 #define METRIC_VALUES_ZERO(m)                \
 do {                                         \
-    SPX_METRIC_FOREACH(i, {                  \
-        (m).values[i] = 0;                   \
+    SPX_METRIC_FOREACH(i_, {                 \
+        (m).values[i_] = 0;                  \
     });                                      \
 } while (0)
 
 #define METRIC_VALUES_ADD(a, b)              \
 do {                                         \
-    SPX_METRIC_FOREACH(i, {                  \
-        (a).values[i] += (b).values[i];      \
+    SPX_METRIC_FOREACH(i_, {                 \
+        (a).values[i_] += (b).values[i_];    \
     });                                      \
 } while (0)
 
-#define METRIC_VALUES_SUB(a, b)              \
-do {                                         \
-    SPX_METRIC_FOREACH(i, {                  \
-        (a).values[i] -= (b).values[i];      \
-    });                                      \
+#define METRIC_VALUES_SUB(a, b)               \
+do {                                          \
+    SPX_METRIC_FOREACH(i_, {                  \
+        (a).values[i_] -= (b).values[i_];     \
+    });                                       \
 } while (0)
 
-#define METRIC_VALUES_MAX(a, b)              \
-do {                                         \
-    SPX_METRIC_FOREACH(i, {                  \
-        (a).values[i] =                      \
-            (a).values[i] > (b).values[i] ?  \
-                (a).values[i] :              \
-                (b).values[i]                \
-        ;                                    \
-    });                                      \
+#define METRIC_VALUES_MAX(a, b)               \
+do {                                          \
+    SPX_METRIC_FOREACH(i_, {                  \
+        (a).values[i_] =                      \
+            (a).values[i_] > (b).values[i_] ? \
+                (a).values[i_] :              \
+                (b).values[i_]                \
+        ;                                     \
+    });                                       \
 } while (0)
 
 typedef struct {
@@ -444,8 +444,8 @@ static void calibrate(tracing_profiler_t * profiler, const spx_php_function_t *
 
     avg_noise = (spx_resource_stats_cpu_time() - start) / iter_count;
 
-    profiler->call_start_noise.values[SPX_METRIC_WALL_TIME] = avg_noise;
-    profiler->call_start_noise.values[SPX_METRIC_CPU_TIME] = avg_noise;
+    profiler->call_start_noise.values[SPX_METRIC_WALL_TIME] = (double) avg_noise;
+    profiler->call_start_noise.values[SPX_METRIC_CPU_TIME] = (double) avg_noise;
 
     start = spx_resource_stats_cpu_time();
 
@@ -456,8 +456,8 @@ static void calibrate(tracing_profiler_t * profiler, const spx_php_function_t *
 
     avg_noise = (spx_resource_stats_cpu_time() - start) / iter_count;
 
-    profiler->call_end_noise.values[SPX_METRIC_WALL_TIME] = avg_noise;
-    profiler->call_end_noise.values[SPX_METRIC_CPU_TIME] = avg_noise;
+    profiler->call_end_noise.values[SPX_METRIC_WALL_TIME] = (double) avg_noise;
+    profiler->call_end_noise.values[SPX_METRIC_CPU_TIME] = (double) avg_noise;
 
     profiler->reporter = orig_reporter;
     profiler->called = 0;
@@ -465,7 +465,7 @@ static void calibrate(tracing_profiler_t * profiler, const spx_php_function_t *
     func_table_reset(&profiler->func_table);
 }
 
-static unsigned long func_table_hmap_hash_key(const void * v)
+static uint64_t func_table_hmap_hash_key(const void * v)
 {
     return ((const spx_php_function_t *) v)->hash_code;
 }
diff --git a/src/spx_reporter_fp.c b/src/spx_reporter_fp.c
index b8b4f5e..6c503ee 100644
--- a/src/spx_reporter_fp.c
+++ b/src/spx_reporter_fp.c
@@ -25,6 +25,7 @@
 #include "spx_reporter_fp.h"
 #include "spx_resource_stats.h"
 #include "spx_output_stream.h"
+#include "spx_php.h"
 #include "spx_stdio.h"
 #include "spx_thread.h"
 #include "spx_utils.h"
@@ -81,8 +82,13 @@ spx_profiler_reporter_t * spx_reporter_fp_create(
     reporter->inc = inc;
     reporter->rel = rel;
     reporter->limit = limit;
-    reporter->live = live && isatty(STDOUT_FILENO);
-    reporter->color = color && isatty(STDOUT_FILENO);
+
+    reporter->live = live
+        && spx_php_are_ansi_sequences_supported()
+        && spx_stdio_disabling_supported()
+    ;
+
+    reporter->color = color && spx_php_are_ansi_sequences_supported();
 
     reporter->fd_backup.stdout_fd = -1;
     reporter->fd_backup.stderr_fd = -1;
@@ -392,7 +398,7 @@ static size_t print_report(fp_reporter_t * reporter, const spx_profiler_event_t
             snprintf(
                 cycle_depth_str,
                 sizeof(cycle_depth_str),
-                "%lu@",
+                "%zu@",
                 entry->stats.max_cycle_depth
             );
         }
diff --git a/src/spx_reporter_full.c b/src/spx_reporter_full.c
index e5be1ca..dd3d19c 100644
--- a/src/spx_reporter_full.c
+++ b/src/spx_reporter_full.c
@@ -492,7 +492,7 @@ static int metadata_save(const metadata_t * metadata, const char * file_name)
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "exec_ts",
         metadata->exec_ts
     );
@@ -577,35 +577,35 @@ static int metadata_save(const metadata_t * metadata, const char * file_name)
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "wall_time_ms",
         metadata->wall_time_ms
     );
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "peak_memory_usage",
         metadata->peak_memory_usage
     );
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "called_function_count",
         metadata->called_function_count
     );
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "call_count",
         metadata->call_count
     );
 
     fprintf(
         fp,
-        "  \"%s\": %lu,\n",
+        "  \"%s\": %zu,\n",
         "recorded_call_count",
         metadata->recorded_call_count
     );
diff --git a/src/spx_reporter_trace.c b/src/spx_reporter_trace.c
index 0bbd8f9..6eb6116 100644
--- a/src/spx_reporter_trace.c
+++ b/src/spx_reporter_trace.c
@@ -256,7 +256,7 @@ static void print_row(
     snprintf(
         format,
         sizeof(format),
-        "%%%lus%%s%%s%%s",
+        "%%%zus%%s%%s%%s",
         depth + 1
     );
 
diff --git a/src/spx_resource_stats-win32.c b/src/spx_resource_stats-win32.c
new file mode 100644
index 0000000..88a5724
--- /dev/null
+++ b/src/spx_resource_stats-win32.c
@@ -0,0 +1,51 @@
+/* SPX - A simple profiler for PHP
+ * Copyright (C) 2017-2024 Sylvain Lassaut <NoiseByNorthwest@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "spx_resource_stats.h"
+
+void spx_resource_stats_init(void)
+{
+}
+
+void spx_resource_stats_shutdown(void)
+{
+}
+
+size_t spx_resource_stats_wall_time(void)
+{
+    // FIXME implement it
+    return 0;
+}
+
+size_t spx_resource_stats_cpu_time(void)
+{
+    // FIXME implement it if possible
+    return 0;
+}
+
+size_t spx_resource_stats_own_rss(void)
+{
+    // FIXME implement it if possible
+    return 0;
+}
+
+void spx_resource_stats_io(size_t * in, size_t * out)
+{
+    // FIXME implement it if possible
+    *in = 0;
+    *out = 0;
+}
diff --git a/src/spx_resource_stats.c b/src/spx_resource_stats.c
index 3f5c47e..652f689 100644
--- a/src/spx_resource_stats.c
+++ b/src/spx_resource_stats.c
@@ -22,6 +22,8 @@
 #   include "spx_resource_stats-macos.c"
 #elif defined(__FreeBSD__)
 #   include "spx_resource_stats-freebsd.c"
+#elif defined(_WIN32)
+#   include "spx_resource_stats-win32.c"
 #else
 #   error "Your platform is not supported. Please open an issue."
 #endif
diff --git a/src/spx_stdio-unix.c b/src/spx_stdio-unix.c
new file mode 100644
index 0000000..d377f79
--- /dev/null
+++ b/src/spx_stdio-unix.c
@@ -0,0 +1,63 @@
+/* SPX - A simple profiler for PHP
+ * Copyright (C) 2017-2024 Sylvain Lassaut <NoiseByNorthwest@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+
+static FILE * null_output;
+static int null_output_initialized;
+
+int spx_stdio_disabling_supported(void)
+{
+    return 1;
+}
+
+int spx_stdio_disable(int fd)
+{
+    if (!null_output_initialized) {
+        null_output_initialized = 1;
+        null_output = fopen("/dev/null", "w");
+    }
+
+    if (!null_output) {
+        return -1;
+    }
+
+    int copy = dup(fd);
+    if (copy == -1) {
+        return -1;
+    }
+
+    if (dup2(fileno(null_output), fd) == -1) {
+        close(copy);
+
+        return -1;
+    }
+
+    return copy;
+}
+
+int spx_stdio_restore(int fd, int copy)
+{
+    if (dup2(copy, fd) == -1) {
+        return -1;
+    }
+
+    close(copy);
+
+    return fd;
+}
diff --git a/src/spx_stdio-win32.c b/src/spx_stdio-win32.c
new file mode 100644
index 0000000..a704a27
--- /dev/null
+++ b/src/spx_stdio-win32.c
@@ -0,0 +1,35 @@
+/* SPX - A simple profiler for PHP
+ * Copyright (C) 2017-2024 Sylvain Lassaut <NoiseByNorthwest@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma warning(push, 0)
+
+int spx_stdio_disabling_supported(void)
+{
+    return 0;
+}
+
+int spx_stdio_disable(int fd)
+{
+    return -1;
+}
+
+int spx_stdio_restore(int fd, int copy)
+{
+    return -1;
+}
+
+#pragma warning(pop)
diff --git a/src/spx_stdio.c b/src/spx_stdio.c
index 57ca1a1..7b9bb41 100644
--- a/src/spx_stdio.c
+++ b/src/spx_stdio.c
@@ -16,48 +16,10 @@
  */
 
 
-#if !defined(__unix__) && !(defined(__APPLE__) && defined(__MACH__))
-#   error "Your platform is not supported"
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+#   include "spx_stdio-unix.c"
+#elif defined(_WIN32)
+#   include "spx_stdio-win32.c"
+#else
+#   error "Your platform is not supported, please open an issue."
 #endif
-
-#include <stdio.h>
-#include <unistd.h>
-
-static FILE * null_output;
-static int null_output_initialized;
-
-int spx_stdio_disable(int fd)
-{
-    if (!null_output_initialized) {
-        null_output_initialized = 1;
-        null_output = fopen("/dev/null", "w");
-    }
-
-    if (!null_output) {
-        return -1;
-    }
-
-    int copy = dup(fd);
-    if (copy == -1) {
-        return -1;
-    }
-
-    if (dup2(fileno(null_output), fd) == -1) {
-        close(copy);
-
-        return -1;
-    }
-
-    return copy;
-}
-
-int spx_stdio_restore(int fd, int copy)
-{
-    if (dup2(copy, fd) == -1) {
-        return -1;
-    }
-
-    close(copy);
-
-    return fd;
-}
diff --git a/src/spx_stdio.h b/src/spx_stdio.h
index e0ac40b..a0b1a6e 100644
--- a/src/spx_stdio.h
+++ b/src/spx_stdio.h
@@ -19,6 +19,7 @@
 #ifndef SPX_STDIO_H_DEFINED
 #define SPX_STDIO_H_DEFINED
 
+int spx_stdio_disabling_supported(void);
 int spx_stdio_disable(int fd);
 int spx_stdio_restore(int fd, int copy);
 
diff --git a/src/spx_utils.c b/src/spx_utils.c
index fe761e4..2bf2003 100644
--- a/src/spx_utils.c
+++ b/src/spx_utils.c
@@ -229,7 +229,7 @@ int spx_utils_str_ends_with(const char * str, const char * suffix)
 
 void spx_utils_die_(const char * msg, const char * file, size_t line)
 {
-    fprintf(stderr, "SPX Fatal error at %s:%lu - %s\n", file, line, msg);
+    fprintf(stderr, "SPX Fatal error at %s:%zu - %s\n", file, line, msg);
 
 #ifdef ZTS
     pthread_exit(NULL);