I resolved my problem, by creating a new form and placing a label, button. Now it behave as message box.
Also i have changed the font size and color of the label as per requirement. Below is the code written in VB.net 2005
private void Form1_Load(object sender, EventArgs e)
{
this .MaximizeBox = false ;
this.MinimizeBox = false;
msgbox("Hello world.", "Message Box", true, true);
this.label1.Left = this.Width - 800;
this.button1.Left = this.Width - 500;
this.button2.Left = this.Width - 400;
}
public void msgbox(string msg, string title, bool ok, bool cancel)
{
this.label1.Text = msg;
this.Text = title;
this.button1.Visible = ok;
this.button2.Visible = cancel;
SetHeightWidth(ok,cancel);
}