diff --git a/Telegram/SourceFiles/pspecific_wnd.cpp b/Telegram/SourceFiles/pspecific_wnd.cpp
index 2ea13bc9a..6fbbb4105 100644
--- a/Telegram/SourceFiles/pspecific_wnd.cpp
+++ b/Telegram/SourceFiles/pspecific_wnd.cpp
@@ -714,13 +714,15 @@ namespace {
 			setupUx();
 			setupShell();
 			setupWtsapi();
+			setupPropSys();
 			setupCombase();
+
+			useTheme = !!setWindowTheme;
 		}
 		void setupUx() {
 			HINSTANCE procId = LoadLibrary(L"UXTHEME.DLL");
 
-			if (!loadFunction(procId, "SetWindowTheme", setWindowTheme)) return;
-			useTheme = true;
+			loadFunction(procId, "SetWindowTheme", setWindowTheme);
 		}
 		void setupShell() {
 			HINSTANCE procId = LoadLibrary(L"SHELL32.DLL");
@@ -758,7 +760,12 @@ namespace {
 			HINSTANCE procId = LoadLibrary(L"COMBASE.DLL");
 			setupToast(procId);
 		}
+		void setupPropSys() {
+			HINSTANCE procId = LoadLibrary(L"PROPSYS.DLL");
+			if (!loadFunction(procId, "PropVariantToString", procId)) return;
+		}
 		void setupToast(HINSTANCE procId) {
+			if (!propVariantToString) return;
 			if (QSysInfo::windowsVersion() < QSysInfo::WV_WINDOWS8) return;
 			if (!loadFunction(procId, "RoGetActivationFactory", roGetActivationFactory)) return;
 
@@ -766,9 +773,6 @@ namespace {
 			if (!loadFunction(otherProcId, "WindowsCreateStringReference", windowsCreateStringReference)) return;
 			if (!loadFunction(otherProcId, "WindowsDeleteString", windowsDeleteString)) return;
 
-			HINSTANCE otherOtherProcId = LoadLibrary(L"PROPSYS.DLL");
-			if (!loadFunction(otherOtherProcId, "PropVariantToString", propVariantToString)) return;
-
 			useToast = true;
 		}
 	};
@@ -2822,6 +2826,8 @@ QString pinnedPath() {
 }
 
 void CheckPinnedAppUserModelId() {
+	if (!propVariantToString) return;
+
 	static const int maxFileLen = MAX_PATH * 10;
 
 	HRESULT hr = CoInitialize(0);