diff --git a/TTTConsole/Program.cs b/TTTConsole/Program.cs
index 9e0f9b3..73567a3 100644
--- a/TTTConsole/Program.cs
+++ b/TTTConsole/Program.cs
@@ -10,28 +10,20 @@
 
     class Program {
 
-        [DllImport("TPIRandom.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint ="IsHuman")]
-        private extern static bool IsHumanR();
+        [DllImport("kernel32.dll", SetLastError = true)]
+        public static extern IntPtr LoadLibrary(string lib);
+        [DllImport("kernel32.dll", SetLastError = true)]
+        public static extern void FreeLibrary(IntPtr module);
+        [DllImport("kernel32.dll", SetLastError = true)]
+        public static extern IntPtr GetProcAddress(IntPtr module, string proc);
 
-        [DllImport("TPIRandom.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "GetName", CharSet = CharSet.Ansi)]
-        private extern static void GetNameR(StringBuilder s, Int32 bufsize);
-
-        [DllImport("TPIRandom.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "MyTurn")]
-        private extern static int MyTurnR(IntPtr board);
-
-        [DllImport("TPIRandom.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "IsHuman")]
-        private extern static bool IsHumanH();
-
-        [DllImport("TPIHuman.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "GetName", CharSet = CharSet.Ansi)]
-        private extern static void GetNameH(StringBuilder s, Int32 bufsize);
-
-        [DllImport("TPIHuman.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "MyTurn")]
-        private extern static int MyTurnH(IntPtr board);
-
+        private delegate void GetNameDelegate(StringBuilder s, Int32 bufsize);
+        private delegate bool IsHumanDelegate();
+        private delegate int MyTurnDelegate(IntPtr board);
 
         static string[] PLAYER_STR = new string[] { "", "先手", "後手" };
         static string[] PLAYER_MARK = new string[] { "　", "○", "×" };
-        static string[] names;
+        static List<string> names = new List<string>();
         static int[] thinkers;
         static bool showNumber = false;
 
@@ -47,26 +39,74 @@
             Console.WriteLine("");
             var ttt = new TicTacToe();
 
+            // プラグインDLLを開く
+            var pluginFiles = new List<string>() { "TPIHuman.dll", "TPIRandom.dll" };
+            var modules = new List<IntPtr>();
+            var GetName = new List<GetNameDelegate>();
+            var IsHuman = new List<IsHumanDelegate>();
+            var MyTurn = new List<MyTurnDelegate>();
+
+            foreach (var file in pluginFiles) {
+                var module = LoadLibrary(file);
+                if (module == IntPtr.Zero) // error handling
+                {
+                    Console.WriteLine($"Could not load library: {Marshal.GetLastWin32Error()}");
+                    continue;
+                }
+
+                IntPtr method = GetProcAddress(module, "GetName");
+                if (method == IntPtr.Zero) // error handling
+                {
+                    Console.WriteLine($"Could not load 'GetName' method: {Marshal.GetLastWin32Error()}");
+                    FreeLibrary(module);  // unload library
+                    continue;
+                }
+                GetName.Add((GetNameDelegate)Marshal.GetDelegateForFunctionPointer(method, typeof(GetNameDelegate)));
+
+                method = GetProcAddress(module, "IsHuman");
+                if (method == IntPtr.Zero) // error handling
+                {
+                    Console.WriteLine($"Could not load 'IsHuman' method: {Marshal.GetLastWin32Error()}");
+                    FreeLibrary(module);  // unload library
+                    continue;
+                }
+                IsHuman.Add((IsHumanDelegate)Marshal.GetDelegateForFunctionPointer(method, typeof(IsHumanDelegate)));
+
+                method = GetProcAddress(module, "MyTurn");
+                if (method == IntPtr.Zero) // error handling
+                {
+                    Console.WriteLine($"Could not load 'MyTurn' method: {Marshal.GetLastWin32Error()}");
+                    FreeLibrary(module);  // unload library
+                    continue;
+                }
+                MyTurn.Add((MyTurnDelegate)Marshal.GetDelegateForFunctionPointer(method, typeof(MyTurnDelegate)));
+
+                modules.Add(module);
+            }
+
             // プラグイン名の取得
             System.Text.StringBuilder sb = new System.Text.StringBuilder(256);
-            names = new string[2];
-            GetNameH(sb, sb.Capacity);
-            names[0] = sb.ToString();
-            GetNameR(sb, sb.Capacity);
-            names[1] = sb.ToString();
+            foreach (var gn in GetName) {
+                gn(sb, sb.Capacity);
+                names.Add(sb.ToString());
+            }
+            //GetName[0](sb, sb.Capacity);
+            //names[0] = sb.ToString();
+            //GetName[1](sb, sb.Capacity);
+            //names[1] = sb.ToString();
 
             // プレイヤーの選択
             Console.WriteLine("プレイヤーの選択");
             thinkers = new int[ttt.PLAYERS];
             for (var pl=0; pl< ttt.PLAYERS; pl++) {
-                for (var i = 0; i < names.Length; i++) {
+                for (var i = 0; i < names.Count; i++) {
                     Console.WriteLine($"({i + 1}) {names[i]}");
                 }
                 Console.Write($"{PLAYER_STR[pl + 1]} を選んでください: ");
                 var input = Console.ReadLine();
 
                 if (!int.TryParse(input, out thinkers[pl])) return;
-                if (thinkers[pl] < 1 || thinkers[pl] > names.Length) return;
+                if (thinkers[pl] < 1 || thinkers[pl] > names.Count) return;
                 --thinkers[pl];
             }
 
@@ -84,11 +124,11 @@
                 switch (thinkers[(int)ttt.Player - 1]) {
                 case 0:
                     Console.WriteLine("");
-                    ttt.Set(MyTurnH(ttt.GetBoard()));
+                    //ttt.Set(MyTurnH(ttt.GetBoard()));
                     break;
                 case 1:
-                    ttt.Set(MyTurnR(ttt.GetBoard()));
-                    if (!IsHumanR()) Console.WriteLine($" --> {ttt.LastSet + 1}");
+                    //ttt.Set(MyTurnR(ttt.GetBoard()));
+                    //if (!IsHumanR()) Console.WriteLine($" --> {ttt.LastSet + 1}");
                     break;
                 }
             } while (ttt.Judge == JUDGE.None);
@@ -117,6 +157,7 @@
             // 終了
             Console.Write("Press [Enter] to exit.");
             Console.ReadLine();
+            foreach (var module in modules) FreeLibrary(module);
         }
 
         /// <summary>