【C#】
using System.Collections;

namespace TestApplication
{
    [System.ComponentModel.RunInstaller(true)]
    public class CustomAction : System.Configuration.Install.Installer
    {
        public override void Install(IDictionary stateSaver)
        {
            base.Install(stateSaver);

            int auth = int.Parse(this.Context.Parameters["auth"]);
            // データの保存処理
        }
    }
}



【VB】
<System.ComponentModel.RunInstaller(True)>
Public Class Installer1
    Inherits System.Configuration.Install.Installer

    Public Overrides Sub Install(stateSaver As IDictionary)
        MyBase.Install(stateSaver)
        My.Settings.pass = Me.Context.Parameters("pass")
    End Sub
End Class