diff --git a/build_visual_studio_vr_pybullet_double.bat b/build_visual_studio_vr_pybullet_double.bat
index 3102fe65c..9dee15a2e 100644
--- a/build_visual_studio_vr_pybullet_double.bat
+++ b/build_visual_studio_vr_pybullet_double.bat
@@ -18,5 +18,8 @@ del tmp1234.txt
 cd build3
 
 premake4  --double --midi --enable_openvr --enable_pybullet --python_include_dir="%myvar%/include" --python_lib_dir="%myvar%/libs"   --targetdir="../bin" vs2010 
+
+#premake4  --serial --audio --double --midi --enable_openvr --enable_pybullet --python_include_dir="%myvar%/include" --python_lib_dir="%myvar%/libs"   --targetdir="../bin" vs2010 
+
 start vs2010