diff --git a/source/gui/GUI.cpp b/source/gui/GUI.cpp
deleted file mode 100755
index 7f25566901..0000000000
--- a/source/gui/GUI.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
-GUI
-by Gustav Larsson
-gee@pyro.nu
-*/
-
-//#include "stdafx.h"
-#include "GUI.h"
-
-using namespace std;
-
-
-//--------------------------------------------------------
-//  Error definitions
-//--------------------------------------------------------
-///DEFINE_ERROR(PS_FAIL,				"fail")
-///DEFINE_ERROR(PS_OK,					"ok")
-DEFINE_ERROR(PS_NAME_TAKEN,			"Reference name is taken")
-DEFINE_ERROR(PS_OBJECT_FAIL,		"Object provided is null")
-DEFINE_ERROR(PS_SETTING_FAIL,		"Setting does not exist")
-DEFINE_ERROR(PS_VALUE_INVALID,		"Value provided is syntactically incorrect")
-DEFINE_ERROR(PS_NEEDS_PGUI,			"m_pGUI is NULL when needed for a requested operation")
-DEFINE_ERROR(PS_NAME_AMBIGUITY,		"Two or more objects are sharing name")
-DEFINE_ERROR(PS_NEEDS_NAME,			"An object are trying to fit into a GUI without a name")
-
-DEFINE_ERROR(PS_LEXICAL_FAIL,		"PS_LEXICAL_FAIL")
-DEFINE_ERROR(PS_SYNTACTICAL_FAIL,	"PS_SYNTACTICAL_FAIL")