I use the print class of FotoVision to make a image print program, why doesn't it work?

The following code is from FotoVision, I make a image print program using the class,
but it doesn't work. Only after I have installed the FotoVision (The name of setup program is " FotoVision Desktop.msi ")
my program just work. I think that FotoVision have packaged some other components such as dll or registered photowiz.dll in its setup program, but I'm not sure.
If so, how can I register photowiz.dll with C# Could you help me, thanks!

//  Uses the XP Photo Printing Wizard to print one or more photos.
//  The implementation of the photo wizard is in photowiz.dll but the
//  interface is not exposed. Instead, Microsoft provides the Windows
//  Image Acquisition Library (WIA).
//
//  Use late binding incase the user does not have the WIA component
//  installed (and easier for developers to use the source if it's
//  not installed).

//  use late binding for this source file
// TRANSINFO: Option Strict Off

using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Drawing;
using System.Diagnostics;
using System.Windows.Forms;

namespace FotoVision {
    public sealed class Print  {
        //  const values
        private class Consts  {
            public const string DialogProgId = "WIA.CommonDialog";
            public const string VectorProgId = "WIA.Vector";
        }
       
       
        //  static class
        private Print() {
        }
       
        //  public methods
       
        //  print the specified photo (full path to the photo)
        public static void PrintFile( string file ) {
            PrintFiles( new string[] { file } );
        }
       
       
        //  print the list of photos
        public static void PrintFiles( Photo[] photos ) {
            //  convert to a string array
            string[] files = new string[ photos.Length - 1 + 1 ];
            for ( int i=0; i<=files.Length - 1; i++ ) {
                files[ i ] = photos[ i ].PhotoPath;
            }
            PrintFiles( files );
        }
       
       
        //  print the list of files
        public static void PrintFiles( string[] files ) {
            try {
                //  create the vector COM object    
                object vector = Interaction.CreateObject( Consts.VectorProgId, "" );
    Type vectorType = Type.GetTypeFromProgID(Consts.VectorProgId);                 
                //  add files to the vector object
                foreach ( string file in files ) {
     //<TRANSMOD>Late Binding</TRANSMOD>
     vectorType.InvokeMember("Add", System.Reflection.BindingFlags.InvokeMethod, null, vector, new object[]{file});
                    //vector.Add( file );
                }
               
                //  create the common dialog COM object, and
                //  display the photo print wizard
                //object dialog = Interaction.CreateObject( Consts.DialogProgId, "" );
    //<TRANSMOD>Late Binding</TRANSMOD>
    object dialog = Interaction.CreateObject( Consts.DialogProgId, "" );
    Type dlgType = Type.GetTypeFromProgID(Consts.DialogProgId);                 
    dlgType.InvokeMember("ShowPhotoPrintingWizard", System.Reflection.BindingFlags.InvokeMethod, null, dialog, new object[]{vector});
                //dialog.ShowPhotoPrintingWizard( vector );
               
                vector = null;
                dialog = null;
            }
            catch ( Exception ex ) {
                Global.DisplayError( "The photo could not be printed.", ex );
            }
        }
       
       
    }
   
   
}