[Closed] function publishing problem

hi folks =)
I tried to publish a simple function from an even simpler utility. Here is what I did:

 in the header file:

     // interface ID 
     #define UTIL_INTERFACE Interface_ID(0x7ef853, 0x154272)	
     #define GetUtilInterface(obj) \ 
     		   ((UtilInterface*)obj->GetInterface(UTIL_INTERFACE)) 
     
     // function IDs 
     enum { Util_initialize,}; 
     
     // mixin interface 
     class UtilInterface : public FPMixinInterface 
     { 
     	BEGIN_FUNCTION_MAP 
     		VFN_0(Util_initialize, initialize); 
     	END_FUNCTION_MAP 
     
     	FPInterfaceDesc* GetDesc();
     
     	virtual void initialize()=0; 
     };
     

 in the cpp file:

     static FPInterfaceDesc Util_mixininterface(
    UTIL_INTERFACE, 
        _T("IUtil"),	 
        0,				   
        &UtilDesc,		
        FP_MIXIN,		  
        
        Util_initialize,
        _T("initialize"),
        0,			
        TYPE_VOID,
        0,				  
        0,			 
     
       end 
     ); 
     
     FPInterfaceDesc* UtilInterface::GetDesc() { 
        return &Util_mixininterface; 
     }
     
     void Util::initialize(){
     	MessageBox(NULL,"initialized,"",MB_OK);
     }
     

now in maxlistener

    showinterfaces myUtil
      Interface: IUtil
       Properties:
       Methods:
    	<void>initialize()
       Actions:
    OK
     

so far so good, but:

    myUtil.initialize()
    -- Argument count error: initialize wanted 1, got 0
     

why is that happening ?