Index: src/libchengine/TSubTaskCopyMove.cpp
===================================================================
diff -u -N -rb9453afbc6264bc3f3c6a7f86fadab7744e0fb16 -r20c1b142537a6a4a2a88b7ef722c65c374ece35f
--- src/libchengine/TSubTaskCopyMove.cpp	(.../TSubTaskCopyMove.cpp)	(revision b9453afbc6264bc3f3c6a7f86fadab7744e0fb16)
+++ src/libchengine/TSubTaskCopyMove.cpp	(.../TSubTaskCopyMove.cpp)	(revision 20c1b142537a6a4a2a88b7ef722c65c374ece35f)
@@ -104,9 +104,12 @@
 		FeedbackManagerPtr spFeedbackManager = GetContext().GetFeedbackManager();
 		spFeedbackManager->SetSecondaryTimeTracker(&guard);
 
+#pragma warning(push)
+#pragma warning(disable: 4459)
 		BOOST_SCOPE_EXIT(&spFeedbackManager) {
 			spFeedbackManager->SetSecondaryTimeTracker(nullptr);
 		} BOOST_SCOPE_EXIT_END
+#pragma warning(pop)
 
 		TFileInfoArray& rFilesCache = GetContext().GetFilesCache();
 		TTaskConfigTracker& rCfgTracker = GetContext().GetCfgTracker();
Index: src/libchengine/TSubTaskDelete.cpp
===================================================================
diff -u -N -r08717141ce5f6926116c298cbc9442094a45bb67 -r20c1b142537a6a4a2a88b7ef722c65c374ece35f
--- src/libchengine/TSubTaskDelete.cpp	(.../TSubTaskDelete.cpp)	(revision 08717141ce5f6926116c298cbc9442094a45bb67)
+++ src/libchengine/TSubTaskDelete.cpp	(.../TSubTaskDelete.cpp)	(revision 20c1b142537a6a4a2a88b7ef722c65c374ece35f)
@@ -81,9 +81,12 @@
 		FeedbackManagerPtr spFeedbackManager = GetContext().GetFeedbackManager();
 		spFeedbackManager->SetSecondaryTimeTracker(&guard);
 
+#pragma warning(push)
+#pragma warning(disable: 4459)
 		BOOST_SCOPE_EXIT(&spFeedbackManager) {
 			spFeedbackManager->SetSecondaryTimeTracker(nullptr);
 		} BOOST_SCOPE_EXIT_END
+#pragma warning(pop)
 
 		// log
 		TFileInfoArray& rFilesCache = GetContext().GetFilesCache();
Index: src/libchengine/TSubTaskFastMove.cpp
===================================================================
diff -u -N -r08717141ce5f6926116c298cbc9442094a45bb67 -r20c1b142537a6a4a2a88b7ef722c65c374ece35f
--- src/libchengine/TSubTaskFastMove.cpp	(.../TSubTaskFastMove.cpp)	(revision 08717141ce5f6926116c298cbc9442094a45bb67)
+++ src/libchengine/TSubTaskFastMove.cpp	(.../TSubTaskFastMove.cpp)	(revision 20c1b142537a6a4a2a88b7ef722c65c374ece35f)
@@ -83,11 +83,13 @@
 		FeedbackManagerPtr spFeedbackManager = GetContext().GetFeedbackManager();
 		spFeedbackManager->SetSecondaryTimeTracker(&guard);
 
+#pragma warning(push)
+#pragma warning(disable: 4459)
 		BOOST_SCOPE_EXIT(&spFeedbackManager) {
 			spFeedbackManager->SetSecondaryTimeTracker(nullptr);
 		} BOOST_SCOPE_EXIT_END
+#pragma warning(pop)
 
-
 		// log
 		TWorkerThreadController& rThreadController = GetContext().GetThreadController();
 		TBasePathDataContainerPtr spBasePaths = GetContext().GetBasePaths();
Index: src/libchengine/TSubTaskScanDirectory.cpp
===================================================================
diff -u -N -r08717141ce5f6926116c298cbc9442094a45bb67 -r20c1b142537a6a4a2a88b7ef722c65c374ece35f
--- src/libchengine/TSubTaskScanDirectory.cpp	(.../TSubTaskScanDirectory.cpp)	(revision 08717141ce5f6926116c298cbc9442094a45bb67)
+++ src/libchengine/TSubTaskScanDirectory.cpp	(.../TSubTaskScanDirectory.cpp)	(revision 20c1b142537a6a4a2a88b7ef722c65c374ece35f)
@@ -84,9 +84,12 @@
 		FeedbackManagerPtr spFeedbackManager = GetContext().GetFeedbackManager();
 		spFeedbackManager->SetSecondaryTimeTracker(&guard);
 
+#pragma warning(push)
+#pragma warning(disable: 4459)
 		BOOST_SCOPE_EXIT(&spFeedbackManager) {
 			spFeedbackManager->SetSecondaryTimeTracker(nullptr);
 		} BOOST_SCOPE_EXIT_END
+#pragma warning(pop)
 
 		// log
 		TFileInfoArray& rFilesCache = GetContext().GetFilesCache();
Index: src/libchengine/TTask.cpp
===================================================================
diff -u -N -r08717141ce5f6926116c298cbc9442094a45bb67 -r20c1b142537a6a4a2a88b7ef722c65c374ece35f
--- src/libchengine/TTask.cpp	(.../TTask.cpp)	(revision 08717141ce5f6926116c298cbc9442094a45bb67)
+++ src/libchengine/TTask.cpp	(.../TTask.cpp)	(revision 20c1b142537a6a4a2a88b7ef722c65c374ece35f)
@@ -550,10 +550,12 @@
 		// set time tracker and ensure it is unset on scope exit
 		m_spFeedbackManager->SetTimeTracker(&tProcessingGuard);
 
+#pragma warning(push)
+#pragma warning(disable: 4459)
 		BOOST_SCOPE_EXIT(&m_spFeedbackManager) {
 			m_spFeedbackManager->SetTimeTracker(nullptr);
 		} BOOST_SCOPE_EXIT_END
-
+#pragma warning(pop)
 		const size_t ExceptionBufferSize = 2048;
 		std::unique_ptr<wchar_t[]> upExceptionInfoBuffer(new wchar_t[ExceptionBufferSize]);
 		try