diff --git a/src/validationthread.cpp b/src/validationthread.cpp
new file mode 100644
index 0000000..e41c10e
--- /dev/null
+++ b/src/validationthread.cpp
@@ -0,0 +1,62 @@
+#include "wx/wx.h"
+#include "validationthread.h"
+#include "wrapxerces.h"
+#include <stdexcept>
+#include <memory>
+
+ValidationThread::ValidationThread (
+	const char *buffer,
+	const char *system,
+	bool *finished,
+	bool *success,
+	std::pair<int, int> *position,
+	std::string *message ) : wxThread()
+{
+	if (!buffer || !success || !position || !message )
+	{
+		throw;
+	}
+
+	myBuffer = buffer;
+	mySystem = system;
+	myFinishedPtr = finished;
+	mySuccessPtr = success;
+	myPositionPtr = position;
+	myMessagePtr = message;
+}
+
+void *ValidationThread::Entry()
+{
+	std::auto_ptr<WrapXerces> validator ( new WrapXerces() );
+
+	if ( TestDestroy() )
+		Exit();
+	
+	bool res = validator->validateMemory (
+		myBuffer.c_str(),
+		mySystem.c_str(),
+		myBuffer.size() );
+	
+	if ( TestDestroy() )
+		Exit();
+	
+	if ( !res )
+	{
+		*mySuccessPtr = res;
+		*myPositionPtr = validator->getErrorPosition();
+		*myMessagePtr = validator->getLastError();		
+	}
+	else
+	{
+		*mySuccessPtr = true;
+		*myPositionPtr = std::make_pair ( 0, 0 );
+		*myMessagePtr = "";
+	}
+	*myFinishedPtr = true;
+	
+	return NULL;
+}
+
+void ValidationThread::OnExit()
+{
+}
diff --git a/src/validationthread.h b/src/validationthread.h
new file mode 100644
index 0000000..06b0fd3
--- /dev/null
+++ b/src/validationthread.h
@@ -0,0 +1,21 @@
+#ifndef VALIDATION_THREAD_H
+#define VALIDATION_THREAD_H
+
+#include <utility>
+#include <string>
+#include <wx/thread.h>
+
+class ValidationThread : public wxThread
+{
+public:
+	ValidationThread ( const char *buffer, const char *system, bool *finished, bool *success, std::pair<int, int> *position, std::string *message );
+	virtual void *Entry();
+	virtual void OnExit();
+private:
+	std::string myBuffer, mySystem;
+	bool *myFinishedPtr, *mySuccessPtr;
+	std::pair<int, int> *myPositionPtr;
+	std::string *myMessagePtr;
+};
+
+#endif