Единственото за което се сещам е да наследиш контролата и да прихванеш събитието. Пробвай това:

//CustomList.cs ->nasledenata kontrola w slu4aq polzwan listbox

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;

namespace scroll
{
/// <summary>
/// Summary description for CurtomList.
/// </summary>
public class CurtomList : System.Windows.Forms.ListBox
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public const int WM_VSCROLL = 0x0115;



public CurtomList()
{
// This call is required by the Windows.Forms Form Designer.
InitializeComponent();

// TODO: Add any initialization after the InitComponent call
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if( components != null )
components.Dispose();
}
base.Dispose( disposing );
}

protected override void WndProc(ref Message m)
{
if(m.Msg==WM_VSCROLL)
{
for(int i=0;i<Parent.Controls.Count;i++)
if(Parent.Controls.Name=="listBox1")
{

scroll.CurtomList l=(scroll.CurtomList)Parent.Controls;
l.TopIndex=this.TopIndex;
break;
}
}
base.WndProc (ref m);
}


#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
}
#endregion

protected override void OnPaint(PaintEventArgs pe)
{
// TODO: Add custom paint code here

// Calling the base class OnPaint
base.OnPaint(pe);
}
}
}

всъщност от това същественото е само константата WM_VSCROLL и WndProc

ще трябва да смениш името на listBox1 с това на твоята контрола
самото ползване става по следния начин:

namespace scroll
{


public class Form1 : System.Windows.Forms.Form
{
private scroll.CurtomList listBox1;
private scroll.CurtomList listBox2;
....


Надявам се това да помогне