diff --git a/src/Package/Extension/sqlsrv.php b/src/Package/Extension/sqlsrv.php
index 39f64f5e..b0abf407 100644
--- a/src/Package/Extension/sqlsrv.php
+++ b/src/Package/Extension/sqlsrv.php
@@ -10,16 +10,28 @@ use StaticPHP\Attribute\Package\Extension;
 use StaticPHP\Attribute\PatchDescription;
 use StaticPHP\Package\PackageInstaller;
 use StaticPHP\Package\PhpExtensionPackage;
+use StaticPHP\Util\FileSystem;
 
 #[Extension('sqlsrv')]
 class sqlsrv extends PhpExtensionPackage
 {
+    #[BeforeStage('php', [php::class, 'buildconfForWindows'], 'ext-sqlsrv')]
+    #[PatchDescription('Remove /sdl /W4 /WX flags from sqlsrv config.w32 to prevent strict compilation failures on Windows (these flags get merged into STATIC_EXT_CFLAGS and applied to Zend engine files)')]
+    public function patchBeforeBuildconfForWindows(): void
+    {
+        // Fix the compilation issue of sqlsrv on Windows (/sdl causes C4703 to be treated as errors in Zend files)
+        if (file_exists(SOURCE_PATH . '/php-src/ext/sqlsrv/config.w32')) {
+            FileSystem::replaceFileStr(SOURCE_PATH . '/php-src/ext/sqlsrv/config.w32', '/sdl /W4 /WX', '');
+        }
+    }
+
     #[BeforeStage('php', [php::class, 'makeForWindows'], 'ext-sqlsrv')]
-    #[PatchDescription('Fix sqlsrv Makefile: remove /W4 and /WX flags to prevent build errors on Windows')]
+    #[PatchDescription('Fix sqlsrv Makefile: remove /sdl /W4 /WX flags to prevent build errors on Windows')]
     public function patchBeforeMake(PackageInstaller $installer): bool
     {
         $makefile = $installer->getTargetPackage('php')->getSourceDir() . '\Makefile';
         $makeContent = file_get_contents($makefile);
+        $makeContent = preg_replace('/^(CFLAGS_(?:PDO_)?SQLSRV=.*?)\s+\/sdl\b/m', '$1', $makeContent);
         $makeContent = preg_replace('/^(CFLAGS_(?:PDO_)?SQLSRV=.*?)\s+\/W4\b/m', '$1', $makeContent);
         $makeContent = preg_replace('/^(CFLAGS_(?:PDO_)?SQLSRV=.*?)\s+\/WX\b/m', '$1', $makeContent);
         file_put_contents($makefile, $makeContent);