diff --git a/cocos2dx/platform/win32/CCImage.cpp b/cocos2dx/platform/win32/CCImage.cpp
index af85258182..f5011f7516 100644
--- a/cocos2dx/platform/win32/CCImage.cpp
+++ b/cocos2dx/platform/win32/CCImage.cpp
@@ -375,7 +375,6 @@ bool CCImage::initWithString(
                                int             nSize/* = 0*/)
 {
     bool bRet = false;
-    unsigned char * pImageData = 0;
     do 
     {
         CC_BREAK_IF(! pText);       
@@ -391,8 +390,8 @@ bool CCImage::initWithString(
         SIZE size = {nWidth, nHeight};
         CC_BREAK_IF(! dc.drawText(pText, size, eAlignMask));
 
-        pImageData = new unsigned char[size.cx * size.cy * 4];
-        CC_BREAK_IF(! pImageData);
+        m_pData = new unsigned char[size.cx * size.cy * 4];
+        CC_BREAK_IF(! m_pData);
 
         struct
         {
@@ -407,8 +406,6 @@ bool CCImage::initWithString(
         m_nHeight   = (short)size.cy;
         m_bHasAlpha = true;
         m_bPreMulti = false;
-        m_pData     = pImageData;
-        pImageData  = 0;
         m_nBitsPerComponent = 8;
         // copy pixed data
         bi.bmiHeader.biHeight = (bi.bmiHeader.biHeight > 0)
diff --git a/cocos2dx/textures/CCTexture2D.cpp b/cocos2dx/textures/CCTexture2D.cpp
index 0e17c104d7..3824f0710a 100644
--- a/cocos2dx/textures/CCTexture2D.cpp
+++ b/cocos2dx/textures/CCTexture2D.cpp
@@ -448,16 +448,16 @@ bool CCTexture2D::initWithString(const char *text, const char *fontName, float f
         return false;
     }
     
+    CCImage* pImage = new CCImage();
     do 
     {
-        CCImage* pImage = new CCImage();
         CC_BREAK_IF(NULL == pImage);
         bRet = pImage->initWithString(text, (int)dimensions.width, (int)dimensions.height, eAlign, fontName, (int)fontSize);
         CC_BREAK_IF(!bRet);
         bRet = initWithImage(pImage);
-        CC_SAFE_RELEASE(pImage);
     } while (0);
-    
+    CC_SAFE_RELEASE(pImage);
+
     return bRet;
 }
 
diff --git a/extensions/CCBReader/CCBReader.cpp b/extensions/CCBReader/CCBReader.cpp
index 8eca651374..51726ca4e6 100644
--- a/extensions/CCBReader/CCBReader.cpp
+++ b/extensions/CCBReader/CCBReader.cpp
@@ -877,7 +877,8 @@ bool CCBReader::readSoundKeyframesForSeq(CCBSequence* seq) {
     if(!numKeyframes) return true;
     
     CCBSequenceProperty* channel = new CCBSequenceProperty();
-    
+    channel->autorelease();
+
     for(int i = 0; i < numKeyframes; ++i) {
         
         float time = readFloat();
@@ -896,8 +897,8 @@ bool CCBReader::readSoundKeyframesForSeq(CCBSequence* seq) {
         CCBKeyframe* keyframe = new CCBKeyframe();
         keyframe->setTime(time);
         keyframe->setValue(value);
-        
         channel->getKeyframes()->addObject(keyframe);
+        keyframe->release();
     }
     
     seq->setSoundChannel(channel);
diff --git a/samples/Cpp/TestCpp/Classes/ExtensionsTest/CocosBuilderTest/TimelineCallbackTest/TimelineCallbackTestLayer.cpp b/samples/Cpp/TestCpp/Classes/ExtensionsTest/CocosBuilderTest/TimelineCallbackTest/TimelineCallbackTestLayer.cpp
index f9ca3705ed..5d7ff0269b 100644
--- a/samples/Cpp/TestCpp/Classes/ExtensionsTest/CocosBuilderTest/TimelineCallbackTest/TimelineCallbackTestLayer.cpp
+++ b/samples/Cpp/TestCpp/Classes/ExtensionsTest/CocosBuilderTest/TimelineCallbackTest/TimelineCallbackTestLayer.cpp
@@ -1,4 +1,5 @@
 #include "TimelineCallbackTestLayer.h"
+#include "SimpleAudioEngine.h"
 
 USING_NS_CC;
 USING_NS_CC_EXT;
@@ -10,6 +11,7 @@ TimelineCallbackTestLayer::TimelineCallbackTestLayer()
 TimelineCallbackTestLayer::~TimelineCallbackTestLayer()
 {
     CC_SAFE_RELEASE(_helloLabel);
+    CocosDenshion::SimpleAudioEngine::end();
 }
 
 SEL_MenuHandler TimelineCallbackTestLayer::onResolveCCBCCMenuItemSelector(CCObject * pTarget, const char * pSelectorName) {
diff --git a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
index e9d4c87db6..29fb6c921c 100644
--- a/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
+++ b/samples/Cpp/TestCpp/Classes/LabelTest/LabelTest.cpp
@@ -1004,7 +1004,9 @@ void  LabelTTFTest::updateAlignment()
     {
         m_plabel->removeFromParentAndCleanup(true);
     }
-    
+
+    CC_SAFE_RELEASE(m_plabel);
+
     m_plabel = CCLabelTTF::create(this->getCurrentAlignment(), "Marker Felt", 32,
                                   blockSize, m_eHorizAlign, m_eVertAlign);
     m_plabel->retain();