diff --git a/src/olflange.h b/src/olflange.h
index 7601eb6..31aea7a 100644
--- a/src/olflange.h
+++ b/src/olflange.h
@@ -1,102 +1,102 @@
 /* olflange.h - Flange between Outlook and the MapiGPGME class
  * Copyright (C) 2005, 2007 g10 Code GmbH
  * 
  * This file is part of GpgOL.
  * 
  * GpgOL is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  * 
  * GpgOL 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 Lesser General Public License for more details.
  * 
  * You should have received a copy of the GNU Lesser General Public License
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef OLFLANGE_H
 #define OLFLANGE_H
 
 #include "mymapi.h"
 #include "mymapitags.h"
 #include "myexchext.h"
 #include "mapihelp.h"
 
 #include "olflange-def.h"
 
 /* The GUID for this plugin.  */
 #define CLSIDSTR_GPGOL   "{42d30988-1a3a-11da-c687-000d6080e735}"
 DEFINE_GUID(CLSID_GPGOL, 0x42d30988, 0x1a3a, 0x11da,
             0xc6, 0x87, 0x00, 0x0d, 0x60, 0x80, 0xe7, 0x35);
 
 /* For documentation: The GUID used for our custom properties:
    {31805ab8-3e92-11dc-879c-00061b031004}
  */
 
 /* The ProgID used by us */
-#define GPGOL_PROGID "GNU.GpgOL"
+#define GPGOL_PROGID "Z.GNU.GpgOL"
 /* User friendly add in name */
 #define GPGOL_PRETTY "GpgOL - The GnuPG Outlook Plugin"
 /* Short description of the addin */
 #define GPGOL_DESCRIPTION "Cryptography for Outlook"
 
 
 
 /*
  GpgolExt
 
  The GpgolExt class is the main exchange extension class. The other 
  extensions will be created in the constructor of this class.
 */
 class GpgolExt : public IExchExt
 {
 public:
   GpgolExt();
   virtual ~GpgolExt();
 
 public:	
   HWND m_hWndExchange;  /* Handle of the exchange window. */
 
 private:
   ULONG m_lRef;
   ULONG m_lContext;
   
   /* Pointer to the other extension objects.  */
   GpgolExtCommands        *m_pExchExtCommands;
   GpgolUserEvents         *m_pExchExtUserEvents;
   GpgolSessionEvents      *m_pExchExtSessionEvents;
   GpgolMessageEvents      *m_pExchExtMessageEvents;
   GpgolPropertySheets     *m_pExchExtPropertySheets;
   GpgolAttachedFileEvents *m_pExchExtAttachedFileEvents;
   GpgolItemEvents         *m_pOutlookExtItemEvents;
 
 public:
   STDMETHODIMP QueryInterface(REFIID riid, LPVOID* ppvObj);
   inline STDMETHODIMP_(ULONG) AddRef() { ++m_lRef;  return m_lRef; };
   inline STDMETHODIMP_(ULONG) Release()
     {
       ULONG lCount = --m_lRef;
       if (!lCount) 
 	delete this;
       return lCount;	
     };
   STDMETHODIMP Install(LPEXCHEXTCALLBACK pEECB, ULONG lContext, ULONG lFlags);
 };
 
 
 const char *ext_context_name (unsigned long no);
 
 EXTERN_C const char * __stdcall gpgol_check_version (const char *req_version);
 
 EXTERN_C int get_ol_main_version (void);
 
 void install_sinks (LPEXCHEXTCALLBACK eecb);
 
 void install_forms (void);
 
 LPDISPATCH get_eecb_object (LPEXCHEXTCALLBACK eecb);
 
 #endif /*OLFLANGE_H*/