diff --git a/GUI/hostsignaller.cpp b/GUI/hostsignaller.cpp
index 7287f81..bbcbb40 100644
--- a/GUI/hostsignaller.cpp
+++ b/GUI/hostsignaller.cpp
@@ -5,18 +5,6 @@ void HostSignaller::Initialize()
 {
 	Host::RegisterProcessAttachCallback([&](DWORD pid){ emit AddProcess(pid); });
 	Host::RegisterProcessDetachCallback([&](DWORD pid){ emit RemoveProcess(pid); });
-	Host::RegisterThreadCreateCallback([&](TextThread* thread)
-	{
-		emit AddThread(thread);
-		thread->RegisterOutputCallBack([&](TextThread* thread, std::wstring output)
-		{
-			output = DispatchSentenceToExtensions(output,
-			{
-				{ "current select", ttCombo->currentText().split(":")[0].toInt() == thread->Number() ? 1 : 0 }
-			});
-			emit ThreadOutput(thread, QString::fromWCharArray(output.c_str()));
-			return output;
-		});
-	});
+	Host::RegisterThreadCreateCallback([&](TextThread* thread) { emit AddThread(thread); });
 	Host::RegisterThreadRemoveCallback([&](TextThread* thread){ emit RemoveThread(thread); });
 }
diff --git a/GUI/hostsignaller.h b/GUI/hostsignaller.h
index 79d8ccb..4935890 100644
--- a/GUI/hostsignaller.h
+++ b/GUI/hostsignaller.h
@@ -18,7 +18,6 @@ signals:
 	void RemoveProcess(unsigned int processId);
 	void AddThread(TextThread* thread);
 	void RemoveThread(TextThread* thread);
-	void ThreadOutput(TextThread* thread, QString output);
 };
 
 #endif // HOSTSIGNALLER_H
diff --git a/GUI/mainwindow.cpp b/GUI/mainwindow.cpp
index cb61dd5..8bb472a 100644
--- a/GUI/mainwindow.cpp
+++ b/GUI/mainwindow.cpp
@@ -67,7 +67,7 @@ MainWindow::MainWindow(QWidget *parent) :
 	connect(hostSignaller, &HostSignaller::RemoveProcess, this, &MainWindow::RemoveProcess);
 	connect(hostSignaller, &HostSignaller::AddThread, this, &MainWindow::AddThread);
 	connect(hostSignaller, &HostSignaller::RemoveThread, this, &MainWindow::RemoveThread);
-	connect(hostSignaller, &HostSignaller::ThreadOutput, this, &MainWindow::ThreadOutput);
+	connect(this, &MainWindow::ThreadOutputReceived, this, &MainWindow::ThreadOutput);
 	std::map<int, QString> extensions = LoadExtensions();
 	for (auto i : extensions) extenCombo->addItem(QString::number(i.first) + ":" + i.second);
 	Host::Open();
@@ -115,6 +115,15 @@ void MainWindow::AddThread(TextThread* thread)
 		GenerateHCode(Host::GetHookParam(thread->GetThreadParameter().pid, thread->GetThreadParameter().hook), thread->GetThreadParameter().pid) +
 		")"
 	);
+	thread->RegisterOutputCallBack([&](TextThread* thread, std::wstring output)
+	{
+		output = DispatchSentenceToExtensions(output,
+			{
+				{ "current select", ttCombo->currentText().split(":")[0].toInt() == thread->Number() ? 1 : 0 }
+			});
+		emit ThreadOutputReceived(thread, QString::fromWCharArray(output.c_str()));
+		return output;
+	});
 }
 
 void MainWindow::RemoveThread(TextThread* thread)
@@ -218,7 +227,7 @@ void MainWindow::on_ttCombo_activated(int index)
 
 void MainWindow::on_addExtenButton_clicked()
 {
-	QString extenFileName = QFileDialog::getOpenFileName(this, "Select extension dll", "C:\\", "Extensions (*.dll)");
+	QString extenFileName = QFileDialog::getOpenFileName(this, "Select Extension dll", "C:\\", "Extensions (*.dll)");
 	if (!extenFileName.length()) return;
 	QString extenName = extenFileName.split("/")[extenFileName.split("/").count() - 1];
 	extenName.chop(4);
@@ -233,6 +242,7 @@ void MainWindow::on_addExtenButton_clicked()
 
 void MainWindow::on_rmvExtenButton_clicked()
 {
+	if (extenCombo->currentText().size() == 0) return;
 	QString extenFileName = extenCombo->currentText().split(":")[0] + "_" + extenCombo->currentText().split(":")[1] + "_nexthooker_extension.dll";
 	FreeLibrary(GetModuleHandleW(extenFileName.toStdWString().c_str()));
 	DeleteFileW(extenFileName.toStdWString().c_str());
diff --git a/GUI/mainwindow.h b/GUI/mainwindow.h
index 0453517..3c65361 100644
--- a/GUI/mainwindow.h
+++ b/GUI/mainwindow.h
@@ -22,6 +22,9 @@ public:
 	explicit MainWindow(QWidget *parent = nullptr);
 	~MainWindow();
 
+signals:
+	void ThreadOutputReceived(TextThread* thread, QString output);
+
 private slots:
 	void AddProcess(unsigned int processId);
 	void RemoveProcess(unsigned int processId);
@@ -35,7 +38,6 @@ private slots:
 	void on_hookButton_clicked();
 	void on_saveButton_clicked();
 	void on_addExtenButton_clicked();
-
 	void on_rmvExtenButton_clicked();
 
 private: