diff --git a/src/catalogresolverthread.cpp b/src/catalogresolverthread.cpp
deleted file mode 100644
index 0e11e34..0000000
--- a/src/catalogresolverthread.cpp
+++ /dev/null
@@ -1,40 +0,0 @@
-#include "wx/wx.h"
-#include "catalogresolverthread.h"
-#include "wraplibxml.h"
-#include <memory>
-
-wxCriticalSection catalogResolverCriticalSection;
-
-CatalogResolverThread::CatalogResolverThread (
-	std::string *publicId,
-	std::string *systemId,
-	bool *finished,
-	const std::string& catalogPath ) : wxThread()//( wxTHREAD_JOINABLE )
-{
-	myPublicIdPtr = publicId;
-	mySystemIdPtr = systemId;
-	myFinishedPtr = finished;
-	myCatalogPath = catalogPath;
-
-	*myFinishedPtr = false;
-}
-
-void *CatalogResolverThread::Entry()
-{
-	{
-		wxCriticalSectionLocker locker ( catalogResolverCriticalSection );
-
-		std::auto_ptr<WrapLibxml> libxml ( new WrapLibxml ( false ) );
-		*mySystemIdPtr = libxml->lookupPublicId ( *myPublicIdPtr );
-	}
-	Exit();
-	return NULL;
-}
-
-void CatalogResolverThread::OnExit()
-{
-	{
-		wxCriticalSectionLocker locker ( catalogResolverCriticalSection );
-		*myFinishedPtr = true;
-	}
-}
diff --git a/src/catalogresolverthread.h b/src/catalogresolverthread.h
deleted file mode 100644
index 1b1a8f8..0000000
--- a/src/catalogresolverthread.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef CATALOG_RESOLVER_THREAD_H
-#define CATALOG_RESOLVER_THREAD_H
-
-#include <utility>
-#include <string>
-#include <wx/thread.h>
-
-class CatalogResolverThread : public wxThread
-{
-public:
-	CatalogResolverThread ( std::string *publicId, std::string *systemId, bool *finished, const std::string& catalogPath );
-	virtual void *Entry();
-	virtual void OnExit();
-private:
-	std::string *myPublicIdPtr, *mySystemIdPtr;
-	std::string myCatalogPath;
-	bool *myFinishedPtr;
-};
-
-#endif