diff --git a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.ncb b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.ncb
index 9ec1195..841cf47 100644
Binary files a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.ncb and b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.ncb differ
diff --git a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.suo b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.suo
index a6ea07b..ad6ea14 100644
Binary files a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.suo and b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL.suo differ
diff --git a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/Debug/BuildLog.htm b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/Debug/BuildLog.htm
index 80db57d..e4269c3 100644
Binary files a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/Debug/BuildLog.htm and b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/Debug/BuildLog.htm differ
diff --git a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.cpp b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.cpp
index 4902833..f3ddaa3 100644
--- a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.cpp
+++ b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.cpp
@@ -32,6 +32,15 @@ RCSrl::RCSrl()
 // destructor
 RCSrl::~RCSrl()
 {
+	this->!RCSrl();
+}
+
+// finalizer
+RCSrl::!RCSrl()
+{
+	// destructorは明示的にdeleteされないと呼ばれない(GCからは呼ばれない)ようなので
+	// GCに解放してもらったときに資源を解放するには finalizer が必要
+
 	// ポインタは(たぶん) unmanaged なので自主的に解放する
 	delete (this->pRomHeader);
 }
diff --git a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.h b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.h
index 61cff12..4af116f 100644
--- a/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.h
+++ b/build/tools/MasterEditor/MasterEditorTWL/MasterEditorTWL/srl.h
@@ -342,10 +342,11 @@ namespace MasterEditorTWL
 		// MRC追加項目
 		property RCMrcSpecialList ^hMrcSpecialList;
 
-		// constructor and destructor
+		// constructor / destructor / finalizer 
 	public:
 		RCSrl();
 		~RCSrl();
+		!RCSrl();
 
 		// method
 	public: