diff --git a/inc/hgl/platform/compiler/Microsoft.h b/inc/hgl/platform/compiler/Microsoft.h
index 01150d8..b44740e 100644
--- a/inc/hgl/platform/compiler/Microsoft.h
+++ b/inc/hgl/platform/compiler/Microsoft.h
@@ -4,13 +4,15 @@
 #define HGL_COMPILER_NAME            OS_TEXT("Microsoft C/C++")
 #define HGL_LIB_COMPILER_NAME        OS_TEXT("MSC")
 
-#if _MSC_VER < 1910                            //Visual C++ 2017
+#if _MSC_VER < 1900                            //Visual C++ 2017
     #error Please upgrade your compiler or development tools to Microsoft C/C++ 19.1 (Visual C++ 2017) or later.
 #else
     #if _MSC_VER >= 1920
         #define HGL_LIB_COMPILER_VERSION    OS_TEXT("19.2")      //Visual C++ 2019
     #elif _MSC_VER >= 1910
         #define HGL_LIB_COMPILER_VERSION    OS_TEXT("19.1")      //Visual C++ 2017
+    #elif _MSC_VER >= 1900
+        #define HGL_LIB_COMPILER_VERSION    OS_TEXT("19.0")      //Visual C++ 2015
     #else
         #define HGL_LIB_COMPILER_VERSION    OS_TEXT("Unknow")
     #endif//_MSC_VER
diff --git a/inc/hgl/type/List.cpp b/inc/hgl/type/List.cpp
index 7792411..7a80302 100644
--- a/inc/hgl/type/List.cpp
+++ b/inc/hgl/type/List.cpp
@@ -46,7 +46,6 @@ namespace hgl
         if(!items||count<=0)
             return(false);
 #ifdef _WIN32
-        srand( time(0) );
         memcpy(&ti,items+(rand()%count),sizeof(T));
 #else
         memcpy(&ti,items+(lrand48()%count),sizeof(T));