diff --git a/CMakeLists.txt b/CMakeLists.txt
index 450eed05f..848d3d941 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,7 @@ INCLUDE_DIRECTORIES(
 # Platform specific definitions
 
 IF(WIN32)
+    ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
     #needed for net plugin
     SET (OSG_SOCKET_LIBS wsock32.lib)
     # Both Cygwin and Msys need -DNOMINMAX ???
diff --git a/include/osg/BufferObject b/include/osg/BufferObject
index 46b35be81..d28963173 100644
--- a/include/osg/BufferObject
+++ b/include/osg/BufferObject
@@ -255,7 +255,7 @@ class OSG_EXPORT VertexBufferObject : public BufferObject
         Array* getArray(unsigned int i) { return _bufferEntryArrayPairs[i].second; }
         const Array* getArray(unsigned int i) const { return _bufferEntryArrayPairs[i].second; }
         
-        const GLvoid* getOffset(unsigned int i) const { return (const GLvoid*)(_bufferEntryArrayPairs[i].first.offset); }
+        const GLvoid* getOffset(unsigned int i) const { return (const GLvoid*)(((char *)0)+(_bufferEntryArrayPairs[i].first.offset)); }
 
         virtual void compileBuffer(State& state) const;
 
@@ -291,7 +291,7 @@ class OSG_EXPORT ElementBufferObject : public BufferObject
         DrawElements* getDrawElements(unsigned int i) { return _bufferEntryDrawElementsPairs[i].second; }
         const DrawElements* getDrawElements(unsigned int i) const { return _bufferEntryDrawElementsPairs[i].second; }
         
-        const GLvoid* getOffset(unsigned int i) const { return (const GLvoid*)(_bufferEntryDrawElementsPairs[i].first.offset); }
+        const GLvoid* getOffset(unsigned int i) const { return (const GLvoid*)(((char *)0)+(_bufferEntryDrawElementsPairs[i].first.offset)); }
 
         virtual void compileBuffer(State& state) const;
 
diff --git a/src/osgPlugins/ac/ac3d.cpp b/src/osgPlugins/ac/ac3d.cpp
index 0d00d72ff..1d727e1bd 100644
--- a/src/osgPlugins/ac/ac3d.cpp
+++ b/src/osgPlugins/ac/ac3d.cpp
@@ -611,19 +611,19 @@ class PrimitiveBin : public osg::Referenced
   protected:
     bool isLineLoop() const
     {
-        return _flags & SurfaceTypeLineLoop;
+        return (_flags & SurfaceTypeLineLoop)!=0;
     }
     bool isLineStrip() const
     {
-        return _flags & SurfaceTypeLineStrip;
+        return (_flags & SurfaceTypeLineStrip)!=0;
     }
     bool isTwoSided() const
     {
-        return _flags & SurfaceTwoSided;
+        return (_flags & SurfaceTwoSided)!=0;
     }
     bool isSmooth() const
     {
-        return _flags & SurfaceShaded;
+        return (_flags & SurfaceShaded)!=0;
     }
 
     osg::ref_ptr<osg::Geode> _geode;
diff --git a/src/osgPlugins/osg/Sequence.cpp b/src/osgPlugins/osg/Sequence.cpp
index 1ad747cc7..331fb4298 100644
--- a/src/osgPlugins/osg/Sequence.cpp
+++ b/src/osgPlugins/osg/Sequence.cpp
@@ -170,7 +170,7 @@ bool Sequence_readLocalData(Object& obj, Input& fr)
         {
         int sync ;
         fr[1].getInt(sync) ;
-        sw.setSync((bool)sync) ;
+        sw.setSync(sync!=0) ;
             iteratorAdvanced = true;
             fr += 2;
         }
@@ -181,7 +181,7 @@ bool Sequence_readLocalData(Object& obj, Input& fr)
         {
             int clearOnStop ;
             fr[1].getInt(clearOnStop) ;
-            sw.setClearOnStop((bool)clearOnStop) ;
+            sw.setClearOnStop(clearOnStop!=0) ;
             iteratorAdvanced = true;
             fr += 2;
         }