diff --git a/FreeRTOS/Demo/WIN32-MSVC/FreeRTOSConfig.h b/FreeRTOS/Demo/WIN32-MSVC/FreeRTOSConfig.h
index ae567c196..2f8243118 100644
--- a/FreeRTOS/Demo/WIN32-MSVC/FreeRTOSConfig.h
+++ b/FreeRTOS/Demo/WIN32-MSVC/FreeRTOSConfig.h
@@ -83,7 +83,7 @@
 #define configUSE_TICK_HOOK						1
 #define configTICK_RATE_HZ						( 1000 ) /* In this non-real time simulated environment the tick frequency has to be at least a multiple of the Win32 tick frequency, and therefore very slow. */
 #define configMINIMAL_STACK_SIZE				( ( unsigned short ) 50 ) /* In this simulated case, the stack only has to hold one small structure as the real stack is part of the win32 thread. */
-#define configTOTAL_HEAP_SIZE					( ( size_t ) ( 21 * 1024 ) )
+#define configTOTAL_HEAP_SIZE					( ( size_t ) ( 22 * 1024 ) )
 #define configMAX_TASK_NAME_LEN					( 12 )
 #define configUSE_TRACE_FACILITY				1
 #define configUSE_16_BIT_TICKS					0
diff --git a/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj b/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj
index 91df9d922..5e65e3e17 100644
--- a/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj
+++ b/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj
@@ -143,6 +143,7 @@
     <ClCompile Include="..\Common\Minimal\flop.c" />
     <ClCompile Include="..\Common\Minimal\GenQTest.c" />
     <ClCompile Include="..\Common\Minimal\integer.c" />
+    <ClCompile Include="..\Common\Minimal\IntSemTest.c" />
     <ClCompile Include="..\Common\Minimal\PollQ.c" />
     <ClCompile Include="..\Common\Minimal\QPeek.c" />
     <ClCompile Include="..\Common\Minimal\QueueOverwrite.c" />
diff --git a/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj.filters b/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj.filters
index 7d9549818..debd11c01 100644
--- a/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj.filters
+++ b/FreeRTOS/Demo/WIN32-MSVC/WIN32.vcxproj.filters
@@ -136,6 +136,9 @@
     <ClCompile Include="..\..\Source\portable\MemMang\heap_5.c">
       <Filter>FreeRTOS Source\Source\Portable</Filter>
     </ClCompile>
+    <ClCompile Include="..\Common\Minimal\IntSemTest.c">
+      <Filter>Demo App Source\Common Demo Tasks</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="FreeRTOSConfig.h">
diff --git a/FreeRTOS/Demo/WIN32-MSVC/main.c b/FreeRTOS/Demo/WIN32-MSVC/main.c
index 6b1b9554d..064c91375 100644
--- a/FreeRTOS/Demo/WIN32-MSVC/main.c
+++ b/FreeRTOS/Demo/WIN32-MSVC/main.c
@@ -112,7 +112,7 @@ that make up the total heap.  This is only done to provide an example of heap_5
 being used as this demo could easily create one large heap region instead of
 multiple smaller heap regions - in which case heap_4.c would be the more
 appropriate choice. */
-#define mainREGION_1_SIZE	2001
+#define mainREGION_1_SIZE	3001
 #define mainREGION_2_SIZE	18005
 #define mainREGION_3_SIZE	1007
 
diff --git a/FreeRTOS/Demo/WIN32-MSVC/main_full.c b/FreeRTOS/Demo/WIN32-MSVC/main_full.c
index 4a5cb5bc4..74fc3f29e 100644
--- a/FreeRTOS/Demo/WIN32-MSVC/main_full.c
+++ b/FreeRTOS/Demo/WIN32-MSVC/main_full.c
@@ -133,6 +133,7 @@
 #include "QueueSet.h"
 #include "QueueOverwrite.h"
 #include "EventGroupsDemo.h"
+#include "IntSemTest.h"
 
 /* Priorities at which the tasks are created. */
 #define mainCHECK_TASK_PRIORITY			( configMAX_PRIORITIES - 2 )
@@ -209,6 +210,7 @@ int main_full( void )
 	vStartQueueOverwriteTask( mainQUEUE_OVERWRITE_PRIORITY );
 	xTaskCreate( prvDemoQueueSpaceFunctions, "QSpace", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
 	vStartEventGroupTasks();
+	vStartInterruptSemaphoreTasks();
 
 	#if( configUSE_PREEMPTION != 0  )
 	{
@@ -263,7 +265,11 @@ const TickType_t xCycleFrequency = 2500 / portTICK_PERIOD_MS;
 		}
 		#endif
 
-		if( xAreEventGroupTasksStillRunning() != pdTRUE )
+		if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
+		{
+			pcStatusMessage = "Error: IntSem";
+		}
+		else if( xAreEventGroupTasksStillRunning() != pdTRUE )
 		{
 			pcStatusMessage = "Error: EventGroup";
 		}
@@ -403,7 +409,7 @@ void vFullDemoTickHookFunction( void )
 	vPeriodicEventGroupsProcessing();
 
 	/* Exercise giving mutexes from an interrupt. */
-	vMutexISRInteractionTest();
+	vInterruptSemaphorePeriodicTest();
 }
 /*-----------------------------------------------------------*/