diff --git a/.gitignore b/.gitignore
index ac2da33..77cf21f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -261,3 +261,4 @@ __pycache__/
 *.pyc
 /Ida
 /Export
+/DrMem
diff --git a/CompileForDrMemory.bat b/CompileForDrMemory.bat
index 13ab55b..bcbdb8c 100644
--- a/CompileForDrMemory.bat
+++ b/CompileForDrMemory.bat
@@ -1 +1,3 @@
-cl /Zi /MT /EHsc /O y- /Ob0 /Femyapp.exe *.cpp user32.lib
\ No newline at end of file
+rc /Fo.\DrMem\SpaceCadetPinball.res ".\SpaceCadetPinball\SpaceCadetPinball.rc"
+
+ cl /Zi /MT /EHsc /O  /Ob0 /cgthreads4 /Fo.\DrMem\ /Fe.\DrMem\myapp.exe ".\SpaceCadetPinball\*.cpp" Comctl32.lib Winmm.lib Htmlhelp.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib ".\DrMem\SpaceCadetPinball.res"
\ No newline at end of file
diff --git a/SpaceCadetPinball/TPinballComponent.cpp b/SpaceCadetPinball/TPinballComponent.cpp
index b0d82cb..9ceb066 100644
--- a/SpaceCadetPinball/TPinballComponent.cpp
+++ b/SpaceCadetPinball/TPinballComponent.cpp
@@ -17,6 +17,8 @@ TPinballComponent::TPinballComponent(TPinballTable* table, int groupIndex, bool
 	RenderSprite = nullptr;
 	ListBitmap = nullptr;
 	ListZMap = nullptr;
+	GroupName = nullptr;
+	Control = nullptr;
 	if (table)
 		table->ComponentList->Add(this);
 	if (groupIndex >= 0)
@@ -64,7 +66,7 @@ TPinballComponent::TPinballComponent(TPinballTable* table, int groupIndex, bool
 			}
 
 			RenderSprite = render::create_sprite(
-				visualCount > 0 ? VisualType::Sprite :VisualType::None,
+				visualCount > 0 ? VisualType::Sprite : VisualType::None,
 				rootBmp,
 				zMap,
 				rootBmp->XPosition - table->XOffset,
diff --git a/SpaceCadetPinball/TPinballTable.cpp b/SpaceCadetPinball/TPinballTable.cpp
index 6c4307f..7e2f713 100644
--- a/SpaceCadetPinball/TPinballTable.cpp
+++ b/SpaceCadetPinball/TPinballTable.cpp
@@ -60,6 +60,7 @@ TPinballTable::TPinballTable(): TPinballComponent(nullptr, -1, false)
 	ReplayTimer = 0;
 	TiltTimeoutTimer = 0;
 	MultiballFlag = 0;
+	PlayerCount = 0;
 
 	auto ballObj = new TBall(this);
 	BallList->Add(ballObj);
diff --git a/SpaceCadetPinball/render.cpp b/SpaceCadetPinball/render.cpp
index 97a3713..70bdbfa 100644
--- a/SpaceCadetPinball/render.cpp
+++ b/SpaceCadetPinball/render.cpp
@@ -231,6 +231,7 @@ render_sprite_type_struct* render::create_sprite(VisualType visualType, gdrv_bit
 	sprite->UnknownFlag = 0;
 	sprite->SpriteArray = nullptr;
 	sprite->SpriteCount = 0;
+	sprite->DirtyRect = rectangle_type{};
 	if (rect)
 	{
 		sprite->BoundingRect = *rect;