Index: ext/libicpf/src/libicpf/interface.h
===================================================================
diff -u -N
--- ext/libicpf/src/libicpf/interface.h	(revision 0)
+++ ext/libicpf/src/libicpf/interface.h	(revision 9a885b0cc0f4f80418997812fd8df255cba22a5b)
@@ -0,0 +1,34 @@
+/***************************************************************************
+ *   Copyright (C) 2001-2008 by J�zef Starosczyk                           *
+ *   ixen@copyhandler.com                                                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU Library General Public License          *
+ *   (version 2) as published by the Free Software Foundation;             *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this program; if not, write to the                 *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#ifndef __INTERFACE_H__
+#define __INTERFACE_H__
+
+#include "libicpf.h"
+
+BEGIN_ICPF_NAMESPACE
+
+class IInterface
+{
+public:
+	virtual void Delete() = 0;
+};
+
+END_ICPF_NAMESPACE
+
+#endif
\ No newline at end of file
Index: ext/libicpf/src/libicpf/libicpf.vc90.vcproj
===================================================================
diff -u -N -r4455142ff5bf3754bee26678cc9a84e2f64d3559 -r9a885b0cc0f4f80418997812fd8df255cba22a5b
--- ext/libicpf/src/libicpf/libicpf.vc90.vcproj	(.../libicpf.vc90.vcproj)	(revision 4455142ff5bf3754bee26678cc9a84e2f64d3559)
+++ ext/libicpf/src/libicpf/libicpf.vc90.vcproj	(.../libicpf.vc90.vcproj)	(revision 9a885b0cc0f4f80418997812fd8df255cba22a5b)
@@ -485,6 +485,10 @@
 				>
 			</File>
 			<File
+				RelativePath=".\interface.h"
+				>
+			</File>
+			<File
 				RelativePath=".\libicpf.h"
 				>
 			</File>