How to use aboutBox in C sharp

1.Add aboutBox1
2.set parameter
    this.Text = String.Format("About {0} {0}", AssemblyTitle);
    this.labelProductName.Text = AssemblyProduct;
    this.labelVersion.Text = String.Format("Version {0} {0}", AssemblyVersion);
    this.labelCopyright.Text = AssemblyCopyright;
    this.labelCompanyName.Text = AssemblyCompany;
    this.textBoxDescription.Text = AssemblyDescription;

3. active it
    AboutBox1 abc=new AboutBox1() ;
    abc.ShowDialog();