diff --git a/CMakeLists.txt b/CMakeLists.txt
index 28295fd..d777da4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,8 +13,6 @@ elseif (WIN32)
     #   completely cross platform. For fixes to common issues arising from /permissive- visit:
     #   https://docs.microsoft.com/en-us/cpp/build/reference/permissive-standards-conformance
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3 /permissive-")
-    # disables warnings about _s variants of stdc functions
-    add_definitions(_CRT_SECURE_NO_DEPRECATE _CRT_NONSTDC_NO_DEPRECATE)
 endif ()
 
 find_package(Boost 1.71.0 REQUIRED COMPONENTS system thread)
diff --git a/src/Lua/LuaSystem.cpp b/src/Lua/LuaSystem.cpp
index 48df26c..d2f52d2 100644
--- a/src/Lua/LuaSystem.cpp
+++ b/src/Lua/LuaSystem.cpp
@@ -12,6 +12,7 @@
 #include <future>
 #include <iostream>
 #include <utility>
+#include <optional>
 
 std::unique_ptr<LuaArg> CreateArg(lua_State* L, int T, int S) {
     if (S > T)
@@ -566,21 +567,13 @@ int CallFunction(Lua* lua, const std::string& FuncName, std::unique_ptr<LuaArg>
             Size = int(Arg->args.size());
             Arg->PushArgs(luaState);
         }
-        int R = 0;
         std::string Origin = lua->GetOrigin();
-#ifdef WIN32
-        __try {
-#endif // WIN32
-            R = lua_pcall(luaState, Size, 1, 0);
-            if (CheckLua(luaState, R)) {
-                if (lua_isnumber(luaState, -1)) {
-                    return int(lua_tointeger(luaState, -1));
-                }
+        int R = lua_pcall(luaState, Size, 1, 0);
+        if (CheckLua(luaState, R)) {
+            if (lua_isnumber(luaState, -1)) {
+                return int(lua_tointeger(luaState, -1));
             }
-#ifdef WIN32
-        } __except (Handle(GetExceptionInformation(), Origin.data())) {
         }
-#endif // WIN32
     }
     ClearStack(luaState);
     return 0;
diff --git a/src/Network/TCPHandler.cpp b/src/Network/TCPHandler.cpp
index 2c8914e..d4d5ed3 100644
--- a/src/Network/TCPHandler.cpp
+++ b/src/Network/TCPHandler.cpp
@@ -71,13 +71,7 @@ void TCPClient(Client*c){
     }
     OnConnect(c);
     while (c->GetStatus() > -1)TCPRcv(c);
-#ifdef WIN32
-    __try{
-#endif // WIN32
-            OnDisconnect(c, c->GetStatus() == -2);
-#ifdef WIN32
-    }__except(Handle(GetExceptionInformation(),Sec("OnDisconnect"))){}
-#endif // WIN32
+    OnDisconnect(c, c->GetStatus() == -2);
 }
 void InitClient(Client*c){
     std::thread NewClient(TCPClient,c);