diff --git a/config/lib.json b/config/lib.json
index 0ec1c5a2..69f92737 100644
--- a/config/lib.json
+++ b/config/lib.json
@@ -1,18 +1,4 @@
 {
-    "ast": {
-        "source": "ast",
-        "static-libs-unix": [
-            "ast.la",
-            "ast.lo"
-        ],
-        "static-libs-windows": [
-        ],
-        "headers": [
-            "ast_arginfo.h",
-            "ast_str_defs.h",
-            "php_ast.h"
-        ]
-    },
     "brotli": {
         "source": "brotli",
         "static-libs-unix": [
diff --git a/src/SPC/builder/extension/ast.php b/src/SPC/builder/extension/ast.php
deleted file mode 100644
index 8a5e825d..00000000
--- a/src/SPC/builder/extension/ast.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace SPC\builder\extension;
-
-use SPC\builder\Extension;
-use SPC\util\CustomExt;
-
-#[CustomExt('ast')]
-class ast extends Extension
-{
-    public function getUnixConfigureArg(): string
-    {
-        return '--with-ast';
-    }
-}
diff --git a/src/SPC/builder/linux/library/ast.php b/src/SPC/builder/linux/library/ast.php
deleted file mode 100644
index 2b8ad150..00000000
--- a/src/SPC/builder/linux/library/ast.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace SPC\builder\linux\library;
-
-class ast extends LinuxLibraryBase
-{
-    use \SPC\builder\unix\library\ast;
-
-    public const NAME = 'ast';
-}
diff --git a/src/SPC/builder/macos/library/ast.php b/src/SPC/builder/macos/library/ast.php
deleted file mode 100644
index 166b488e..00000000
--- a/src/SPC/builder/macos/library/ast.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace SPC\builder\macos\library;
-
-class ast extends MacOSLibraryBase
-{
-    use \SPC\builder\unix\library\ast;
-
-    public const NAME = 'ast';
-}
diff --git a/src/SPC/builder/unix/library/ast.php b/src/SPC/builder/unix/library/ast.php
deleted file mode 100644
index 8b0661e0..00000000
--- a/src/SPC/builder/unix/library/ast.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace SPC\builder\unix\library;
-
-use SPC\exception\FileSystemException;
-use SPC\exception\RuntimeException;
-use SPC\exception\WrongUsageException;
-
-trait ast
-{
-    /**
-     * @throws FileSystemException
-     * @throws RuntimeException
-     * @throws WrongUsageException
-     */
-    protected function build(): void
-    {
-        shell()->cd($this->source_dir)
-            ->setEnv(['CFLAGS' => $this->getLibExtraCFlags(), 'LDFLAGS' => $this->getLibExtraLdFlags(), 'LIBS' => $this->getLibExtraLibs()])
-            ->exec('phpize')
-            ->execWithEnv(
-                './configure '
-            )
-            ->execWithEnv('make clean')
-            ->execWithEnv('make')
-            ->execWithEnv('make install DESTDIR=' . BUILD_ROOT_PATH);
-
-        $this->cleanLaFiles();
-    }
-}
diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index a12a0e60..aacd40c5 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -24,6 +24,7 @@ $test_os = [
     'macos-14',
     // 'macos-13',
     'ubuntu-latest',
+    'windows-latest',
 ];
 
 // whether enable thread safe
@@ -39,8 +40,8 @@ $prefer_pre_built = false;
 
 // If you want to test your added extensions and libs, add below (comma separated, example `bcmath,openssl`).
 $extensions = match (PHP_OS_FAMILY) {
-    'Linux', 'Darwin' => 'openssl',
-    'Windows' => 'openssl',
+    'Linux', 'Darwin' => 'ast',
+    'Windows' => 'ast',
 };
 
 // If you want to test lib-suggests feature with extension, add them below (comma separated, example `libwebp,libavif`).
@@ -68,7 +69,7 @@ function _getCombination(string $type = 'common'): string
         'common' => 'bcmath,bz2,calendar,ctype,curl,dom,exif,fileinfo,filter,ftp,gd,gmp,iconv,xml,mbstring,mbregex,' .
             'mysqlnd,openssl,pcntl,pdo,pdo_mysql,pdo_sqlite,phar,posix,redis,session,simplexml,soap,sockets,' .
             'sqlite3,tokenizer,xmlwriter,xmlreader,zlib,zip',
-        'bulk' => 'apcu,ast,bcmath,bz2,calendar,ctype,curl,dba,dom,event,exif,fileinfo,filter,ftp,gd,gmp,iconv,imagick,imap,' .
+        'bulk' => 'apcu,bcmath,bz2,calendar,ctype,curl,dba,dom,event,exif,fileinfo,filter,ftp,gd,gmp,iconv,imagick,imap,' .
             'intl,mbregex,mbstring,mysqli,mysqlnd,opcache,openssl,pcntl,pdo,pdo_mysql,pdo_pgsql,pdo_sqlite,pgsql,phar,' .
             'posix,protobuf,readline,redis,session,shmop,simplexml,soap,sockets,sodium,sqlite3,swoole,sysvmsg,sysvsem,' .
             'sysvshm,tokenizer,xml,xmlreader,xmlwriter,xsl,zip,zlib',