diff --git a/samples/qt/IESample/generation-vc-projects.bat b/samples/qt/IESample/genproj.bat
similarity index 100%
rename from samples/qt/IESample/generation-vc-projects.bat
rename to samples/qt/IESample/genproj.bat
diff --git a/samples/qt/Tutorial/generation-vc-projects.bat b/samples/qt/Tutorial/genproj.bat
similarity index 100%
rename from samples/qt/Tutorial/generation-vc-projects.bat
rename to samples/qt/Tutorial/genproj.bat
diff --git a/samples/qt/VoxelDemo/VoxelDemo.vcproj b/samples/qt/VoxelDemo/VoxelDemo.vcproj
index 1745563d36..68d7d2e44f 100644
--- a/samples/qt/VoxelDemo/VoxelDemo.vcproj
+++ b/samples/qt/VoxelDemo/VoxelDemo.vcproj
@@ -48,7 +48,7 @@
 				RuntimeLibrary="3"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
+				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="4"
 			/>
 			<Tool
@@ -123,7 +123,7 @@
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
+				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
 			/>
 			<Tool
diff --git a/samples/qt/VoxelDemo/src/Timer.cpp b/samples/qt/VoxelDemo/src/Timer.cpp
index d8a3f3ed8f..783b004290 100644
--- a/samples/qt/VoxelDemo/src/Timer.cpp
+++ b/samples/qt/VoxelDemo/src/Timer.cpp
@@ -12,7 +12,7 @@ Timer::Timer():myWriter(0) {}
 
 Timer::Timer(const char* filename)
 {
-	myWriter = fopen(filename, "a");
+	fopen_s(&myWriter,filename, "a");
 }
 
 Timer::~Timer()
diff --git a/samples/qt/VoxelDemo/src/VoxelClient_VisDrawer.cxx b/samples/qt/VoxelDemo/src/VoxelClient_VisDrawer.cxx
index 15cfa91b3e..79d2bb43ef 100644
--- a/samples/qt/VoxelDemo/src/VoxelClient_VisDrawer.cxx
+++ b/samples/qt/VoxelDemo/src/VoxelClient_VisDrawer.cxx
@@ -323,7 +323,7 @@ static void setColor(const Quantity_Color& color, const Standard_Boolean highlig
 {
     static Quantity_Color highlight_color(Quantity_NOC_BLUE1);
 		if(highlight)
-        glColor3f(highlight_color.Red(), highlight_color.Green(), highlight_color.Blue());
+        glColor3f((GLfloat)highlight_color.Red(), (GLfloat)highlight_color.Green(), (GLfloat)highlight_color.Blue());
     else
         glColor3d(color.Red(), color.Green(), color.Blue());
 }