diff --git a/src/Config.h b/src/Config.h
index 02af1f70..47e89fee 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -30,7 +30,7 @@
 #define VER_LAMEXP_MINOR_LO					4
 #define VER_LAMEXP_TYPE						Alpha
 #define VER_LAMEXP_PATCH					2
-#define VER_LAMEXP_BUILD					785
+#define VER_LAMEXP_BUILD					786
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tool versions (minimum expected versions!)
diff --git a/src/Dialog_MainWindow.cpp b/src/Dialog_MainWindow.cpp
index 745d9c50..5701755d 100644
--- a/src/Dialog_MainWindow.cpp
+++ b/src/Dialog_MainWindow.cpp
@@ -90,7 +90,7 @@ MainWindow::MainWindow(FileListModel *fileListModel, AudioFileModel *metaInfo, S
 	m_settings(settingsModel),
 	m_neroEncoderAvailable(lamexp_check_tool("neroAacEnc.exe") && lamexp_check_tool("neroAacDec.exe") && lamexp_check_tool("neroAacTag.exe")),
 	m_fhgEncoderAvailable(lamexp_check_tool("fhgaacenc.exe") && lamexp_check_tool("enc_fhgaac.dll") && lamexp_check_tool("nsutil.dll") && lamexp_check_tool("libmp4v2.dll")),
-	m_qaacEncoderAvailable(lamexp_check_tool("qaac.exe")),
+	m_qaacEncoderAvailable(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll")),
 	m_accepted(false),
 	m_firstTimeShown(true),
 	m_OutputFolderViewInitialized(false)
diff --git a/src/Dialog_Processing.cpp b/src/Dialog_Processing.cpp
index 26f52a49..7eb6f359 100644
--- a/src/Dialog_Processing.cpp
+++ b/src/Dialog_Processing.cpp
@@ -661,7 +661,7 @@ void ProcessingDialog::startNextJob(void)
 		break;
 	case SettingsModel::AACEncoder:
 		{
-			if(lamexp_check_tool("qaac.exe"))
+			if(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll"))
 			{
 				QAACEncoder *aacEncoder = new QAACEncoder();
 				aacEncoder->setBitrate(m_settings->compressionBitrate());
diff --git a/src/Encoder_AAC_QAAC.cpp b/src/Encoder_AAC_QAAC.cpp
index a30377ca..9a69b66b 100644
--- a/src/Encoder_AAC_QAAC.cpp
+++ b/src/Encoder_AAC_QAAC.cpp
@@ -31,9 +31,10 @@
 
 QAACEncoder::QAACEncoder(void)
 :
-	m_binary_enc(lamexp_lookup_tool("qaac.exe"))
+	m_binary_enc(lamexp_lookup_tool("qaac.exe")),
+	m_binary_dll(lamexp_lookup_tool("libsoxrate.dll"))
 {
-	if(m_binary_enc.isEmpty())
+	if(m_binary_enc.isEmpty() || m_binary_dll.isEmpty())
 	{
 		throw "Error initializing QAAC. Tool 'qaac.exe' is not registred!";
 	}
diff --git a/src/Encoder_AAC_QAAC.h b/src/Encoder_AAC_QAAC.h
index 2d990e2a..ca52c0c6 100644
--- a/src/Encoder_AAC_QAAC.h
+++ b/src/Encoder_AAC_QAAC.h
@@ -42,5 +42,6 @@ public:
 
 private:
 	const QString m_binary_enc;
+	const QString m_binary_dll;
 	int m_configProfile;
 };
diff --git a/src/Model_Settings.cpp b/src/Model_Settings.cpp
index e660c174..7094f9a1 100644
--- a/src/Model_Settings.cpp
+++ b/src/Model_Settings.cpp
@@ -222,7 +222,7 @@ void SettingsModel::validate(void)
 	{
 		if(!(lamexp_check_tool("fhgaacenc.exe") && lamexp_check_tool("enc_fhgaac.dll")))
 		{
-			if(!lamexp_check_tool("qaac.exe"))
+			if(!(lamexp_check_tool("qaac.exe") && lamexp_check_tool("libsoxrate.dll")))
 			{
 				if(this->compressionEncoder() == SettingsModel::AACEncoder)
 				{
diff --git a/src/Thread_Initialization.cpp b/src/Thread_Initialization.cpp
index 9c3f9e12..f359dd7f 100644
--- a/src/Thread_Initialization.cpp
+++ b/src/Thread_Initialization.cpp
@@ -485,9 +485,12 @@ void InitializationThread::initQAac(void)
 {
 	const QString appPath = QDir(QCoreApplication::applicationDirPath()).canonicalPath();
 
+	QFileInfo qaacFileInfo[2];
+	qaacFileInfo[0] = QFileInfo(QString("%1/qaac.exe").arg(appPath));
+	qaacFileInfo[1] = QFileInfo(QString("%1/libsoxrate.dll").arg(appPath));
+	
 	bool qaacFilesFound = true;
-	QFileInfo qaacFileInfo(QString("%1/qaac.exe").arg(appPath));
-	if(!qaacFileInfo.exists()) qaacFilesFound = false;
+	for(int i = 0; i < 4; i++)	{ if(!qaacFileInfo[i].exists()) qaacFilesFound = false; }
 
 	//Lock the QAAC binaries
 	if(!qaacFilesFound)
@@ -496,16 +499,21 @@ void InitializationThread::initQAac(void)
 		return;
 	}
 
-	qDebug("Found QAAC encoder:\n%s\n", qaacFileInfo.canonicalFilePath().toUtf8().constData());
-	LockedFile *qaacBin = NULL;
+	qDebug("Found QAAC encoder:\n%s\n", qaacFileInfo[0].canonicalFilePath().toUtf8().constData());
+
+	LockedFile *qaacBin[2];
+	for(int i = 0; i < 2; i++) qaacBin[i] = NULL;
 
 	try
 	{
-		qaacBin = new LockedFile(qaacFileInfo.canonicalFilePath());
+		for(int i = 0; i < 2; i++)
+		{
+			qaacBin[i] = new LockedFile(qaacFileInfo[i].canonicalFilePath());
+		}
 	}
 	catch(...)
 	{
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		qWarning("Failed to get excluive lock to QAAC binary -> QAAC support will be disabled!");
 		return;
 	}
@@ -513,7 +521,7 @@ void InitializationThread::initQAac(void)
 	QProcess process;
 	process.setProcessChannelMode(QProcess::MergedChannels);
 	process.setReadChannel(QProcess::StandardOutput);
-	process.start(qaacFileInfo.canonicalFilePath(), QStringList() << "--check");
+	process.start(qaacFileInfo[0].canonicalFilePath(), QStringList() << "--check");
 
 	if(!process.waitForStarted())
 	{
@@ -521,7 +529,7 @@ void InitializationThread::initQAac(void)
 		qWarning("Error message: \"%s\"\n", process.errorString().toLatin1().constData());
 		process.kill();
 		process.waitForFinished(-1);
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		return;
 	}
 
@@ -538,7 +546,7 @@ void InitializationThread::initQAac(void)
 			qWarning("QAAC process time out -> killing!");
 			process.kill();
 			process.waitForFinished(-1);
-			LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 			return;
 		}
 		while(process.bytesAvailable() > 0)
@@ -577,30 +585,31 @@ void InitializationThread::initQAac(void)
 	if(!(qaacVersion > 0))
 	{
 		qWarning("QAAC version couldn't be determined -> QAAC support will be disabled!");
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		return;
 	}
 	else if(qaacVersion < lamexp_toolver_qaacenc())
 	{
 		qWarning("QAAC version is too much outdated (%s) -> QAAC support will be disabled!", lamexp_version2string("v?.??", qaacVersion, "N/A").toLatin1().constData());
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		return;
 	}
 
 	if(!(coreVersion > 0))
 	{
 		qWarning("CoreAudioToolbox version couldn't be determined -> QAAC support will be disabled!");
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		return;
 	}
 	else if(coreVersion < lamexp_toolver_coreaudio())
 	{
 		qWarning("CoreAudioToolbox version is too much outdated (%s) -> QAAC support will be disabled!", lamexp_version2string("v?.?.?.?", coreVersion, "N/A").toLatin1().constData());
-		LAMEXP_DELETE(qaacBin);
+		for(int i = 0; i < 2; i++) LAMEXP_DELETE(qaacBin[i]);
 		return;
 	}
 
-	lamexp_register_tool(qaacFileInfo.fileName(), qaacBin, qaacVersion);
+	lamexp_register_tool(qaacFileInfo[0].fileName(), qaacBin[0], qaacVersion);
+	lamexp_register_tool(qaacFileInfo[1].fileName(), qaacBin[1], qaacVersion);
 }
 
 void InitializationThread::selfTest(void)