using System.Runtime.InteropServices;   
namespace WZPayDll
{  
    public interface  IWZPay
    {  
        void Pay(stirng url,string payType);
    }   

    [ClassInterface(ClassInterfaceType.None)]  
    public  class WZPay:IWZPay  
    {  
        public void YourProcedure (stirng url,string payType);   
        {  

            //something is here,myself code
        }
    }
}

@echo off
start regasm2.0_x86.exe WZPayDll.dll
exit