It works in Visual Studio 9! How do I write a script to compile and run this
program? See the embedded comments for my attempt.
Thanks,
Siegfried

Error:
Program.cs(2,14): error CS0234: The type or namespace name 'Linq' does not
exist in the namespace 'System' (are you missing an assembly reference?)

Source:
using System;
using System.Linq;
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Collections.Generic;
using System.Text;
/**
* Begin commands to execute this file using MS.NET with CMD.EXE
* csc /out:Program.exe /checked  /d:noprompt  /debug /r:"c:\Program Files
(x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.Linq.dll"
Program.cs
* Program
* del Program.exe
* del Program.pdb
* End commands to execute this file using MS.NET with CMD.EXE
*/

namespace BasicLINQDemo
{
   [Table(Name="Customers")]
   class Customer
   {
       [Column(IsPrimaryKey=true)]
       public string CustomerID { get; set; }
       [Column]
       public string ContactName { get; set; }
       [Column]
       public string City { get; set; }
   }
   class Northwind : DataContext
   {
       public Table<Customer> customers;
       public Northwind(String s) : base(s) { }

   }
   class Program
   {
       [System.Runtime.InteropServices.DllImport("msvcrt.dll", SetLastError
= true)]
       static extern int _getch();
       static System.IO.TextWriter outp = System.Console.Out;
       static System.IO.TextReader inp = System.Console.In;
       static void Main(string[] args)
       {
           try
           {
               outp.WriteLine("start BasicLINQDemo");
               Northwind db = new Northwind(".");
               var query = db.customers;
               foreach (Customer c in query)
                   outp.WriteLine(c.ContactName + ", " + c.City);
           }
           finally
           {
#if noprompt
     outp.WriteLine("terminating props.cs");
#else
               outp.Write("Enter any key to exit BasicLINQDemo.cs:  ");
               _getch();
#endif
           }
       }
   }
}