diff --git a/build_all.bat b/build_all.bat
index d5e876c..5493d4a 100644
--- a/build_all.bat
+++ b/build_all.bat
@@ -49,11 +49,9 @@ set dev=""
 for /f "tokens=1,2,* " %%i in ('reg QUERY "HKEY_CLASSES_ROOT\CLSID\{2E1517DA-87BF-4443-984A-D2BF18F5A908}\LocalServer32" /ve') do set dev=%%k
 echo dev=%dev%
 
-if %dev% == "" (
-	echo "Can not find Visual-Studio installing path"
-	goto end
+if %dev% NEQ "" (
+	call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
 )
-call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
 
 
 
diff --git a/build_base.bat b/build_base.bat
index be69984..401b975 100644
--- a/build_base.bat
+++ b/build_base.bat
@@ -70,13 +70,10 @@ set dev=""
 for /f "tokens=1,2,* " %%i in ('reg QUERY "HKEY_CLASSES_ROOT\CLSID\{2E1517DA-87BF-4443-984A-D2BF18F5A908}\LocalServer32" /ve') do set dev=%%k
 echo dev=%dev%
 
-if %dev% == "" (
-	echo "Can not find Visual-Studio installing path"
-	goto end
+if %dev% NEQ "" (
+	call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
 )
 :env
-call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
-
 
 rem -----------------------------------------------------------------------------------------------------------------------------------
 
diff --git a/build_ds.bat b/build_ds.bat
index 9780ce1..ea20725 100644
--- a/build_ds.bat
+++ b/build_ds.bat
@@ -82,13 +82,10 @@ set dev=""
 for /f "tokens=1,2,* " %%i in ('reg QUERY "HKEY_CLASSES_ROOT\CLSID\{2E1517DA-87BF-4443-984A-D2BF18F5A908}\LocalServer32" /ve') do set dev=%%k
 echo dev=%dev%
 
-if %dev% == "" (
-	echo "Can not find Visual-Studio installing path"
-	goto end
+if %dev% NEQ "" (
+	call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
 )
 :env
-call %dev%\..\..\..\vc\auxiliary\build\vcvars64.bat
-
 
 rem -----------------------------------------------------------------------------------------------------------------------------------