diff --git a/VisualTeensy/Embedded/makefile_builder b/VisualTeensy/Embedded/makefile_builder
index 77f0b7f..4a8940e 100644
--- a/VisualTeensy/Embedded/makefile_builder
+++ b/VisualTeensy/Embedded/makefile_builder
@@ -11,7 +11,7 @@ UPL_CLICMD  := $(UPL_CLICMD_B)/teensy_loader_cli -mmcu=$(MCU) -v $(TARGET_HEX)
 .PHONY:  all upload uploadTy uploadCLI clean 
 
 all:  
-	$(BUILDER) $(FLAGS) -build-path=$(BUILD_PATH) -fqbn=$(FQBN) $(HARDWARE) $(TOOLS) $(LIBRARIES) $(SKETCH_NAME)
+	$(BUILDER) $(FLAGS) -build-path=$(BUILD_PATH) -build-cache=$(BUILD_CACHE) -fqbn=$(FQBN) $(HARDWARE) $(TOOLS) $(LIBRARIES) $(SKETCH_NAME)
 
 upload: all
 	$(UPL_PJRC)
@@ -22,18 +22,11 @@ uploadTy: all
 uploadCLI: all
 	@$(UPL_CLICMD)
 
-clean: 
+clean: 	
 	@echo Cleaning user binaries...
-	@if exist $(BUILD_PATH)/core rd /s/q "$(BUILD_PATH)/core"
-	@if exist $(BUILD_PATH)/libraries rd /s/q "$(BUILD_PATH)/libraries"
-	@if exist $(BUILD_PATH)/pch rd /s/q "$(BUILD_PATH)/pch"
-	@if exist $(BUILD_PATH)/preproc rd /s/q "$(BUILD_PATH)/preproc"
-	@if exist $(BUILD_PATH)/sketch rd /s/q "$(BUILD_PATH)/sketch"
-
-	@if exist "$(BUILD_PATH)/*.eep" del  $(subst /,\,$(BUILD_PATH)/*.eep)
-	@if exist "$(BUILD_PATH)/*.elf" del  $(subst /,\,$(BUILD_PATH)/*.elf)
-	@if exist "$(BUILD_PATH)/*.lst" del  $(subst /,\,$(BUILD_PATH)/*.lst)
-	@if exist "$(BUILD_PATH)/*.sym" del  $(subst /,\,$(BUILD_PATH)/*.sym)
-	@if exist "$(BUILD_PATH)/*.json" del  $(subst /,\,$(BUILD_PATH)/*.json)	
-	@if exist "$(BUILD_PATH)/*.cache" del  $(subst /,\,$(BUILD_PATH)/*.cache)
+	@if exist .vsteensy\build rd /s/q .vsteensy\build
+	@md .vsteensy\build
+
+	@if exist .vsteensy\cache rd /s/q .vsteensy\cache"
+	@md .vsteensy\cache
 	@echo done
diff --git a/VisualTeensy/Properties/AssemblyInfo.cs b/VisualTeensy/Properties/AssemblyInfo.cs
index cc86fdc..963d1ad 100644
--- a/VisualTeensy/Properties/AssemblyInfo.cs
+++ b/VisualTeensy/Properties/AssemblyInfo.cs
@@ -50,7 +50,7 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.9.9.1")]
+[assembly: AssemblyVersion("0.9.9.2")]
 [assembly: AssemblyFileVersion("0.0.0.0")]
 [assembly: NeutralResourcesLanguage("en")]
 
diff --git a/vtCore/Implementation/Project Generators/Makefiles/Makefile_Builder.cs b/vtCore/Implementation/Project Generators/Makefiles/Makefile_Builder.cs
index 944bc22..a60049e 100644
--- a/vtCore/Implementation/Project Generators/Makefiles/Makefile_Builder.cs	
+++ b/vtCore/Implementation/Project Generators/Makefiles/Makefile_Builder.cs	
@@ -35,14 +35,14 @@ static public string generate(IProject project, LibManager libManager, SetupData
             mf.Append(makeEntry("BOARD_ID         := ", "build.board", options) + "\n");
             mf.Append(makeEntry("MCU              := ", "build.mcu", options) + "\n\n");
 
-            mf.Append($"BUILDER_BASE     := {setup.arduinoBase}\n");
+            mf.Append($"BUILDER_BASE     := \"{setup.arduinoBase}\"\n");
             mf.Append($"FLAGS            := -verbose=1 -warnings=all\n");
 
-            mf.Append($"FQBN             := {cfg.selectedBoard.fqbn}\n");
-            mf.Append($"BUILD_PATH       := $(abspath .vsTeensy/build)\n");
+            mf.Append($"FQBN             := {cfg.selectedBoard.fqbn}\n");           
+            mf.Append($"BUILD_PATH       := \"{Path.Combine(project.path,".vsteensy/build")}\"\n").Replace("/","\\");
+            mf.Append($"BUILD_CACHE      := \"{Path.Combine(project.path,".vsteensy/cache")}\"\n").Replace("/", "\\");
 
-            mf.Append($"HARDWARE         := -hardware=\"{setup.arduinoBase}/hardware\"\n");
-           // mf.Append($"TOOLS            := \"{Helpers.getShortPath(setup.arduinoBase+"\\tools-builder")}\"\n\n");
+            mf.Append($"HARDWARE         := -hardware=\"{setup.arduinoBase}/hardware\"\n");           
             mf.Append($"TOOLS            := -tools=\"{(setup.arduinoBase + "\\tools-builder")}\"\n\n");
 
             mf.Append($"LIBRARIES        := -built-in-libraries=\"{setup.arduinoBase}/libraries\"\n");            
diff --git a/vtCore/Implementation/Project Generators/Starter.cs b/vtCore/Implementation/Project Generators/Starter.cs
index 8eb7b4d..b04b9d9 100644
--- a/vtCore/Implementation/Project Generators/Starter.cs	
+++ b/vtCore/Implementation/Project Generators/Starter.cs	
@@ -8,7 +8,7 @@ static public void start_vsCode(string folder, string file)
         {
             var vsCode = new Process();
             vsCode.StartInfo.FileName = "cmd";
-            vsCode.StartInfo.Arguments = $"/c code \"{folder}\" {file}";
+            vsCode.StartInfo.Arguments = $"/c code \"{folder}\" \"{file}\"";
             vsCode.StartInfo.WorkingDirectory = folder;
             vsCode.StartInfo.UseShellExecute = false;
             vsCode.StartInfo.CreateNoWindow = true;