public static bool CompileExecutable(String sourceName)
       {
           FileInfo sourceFile = new FileInfo(sourceName);
           CodeDomProvider provider = null;
           bool compileOk = false;

           // Select the code provider based on the input file extension.
           if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".CS")
           {
               provider = CodeDomProvider.CreateProvider("CSharp");
           }
           else if (sourceFile.Extension.ToUpper(CultureInfo.InvariantCulture) == ".VB")
           {
               provider = CodeDomProvider.CreateProvider("VisualBasic");
           }
           else 
           {
               Console.WriteLine("Source file must have a .cs or .vb extension");
           }

           if (provider != null)
           {

               // Format the executable file name.
               // Build the output assembly path using the current directory
               // and <source>_cs.exe or <source>_vb.exe.

               String exeName = String.Format(@"{0}\{1}.exe", 
                   System.Environment.CurrentDirectory, 
                   sourceFile.Name.Replace(".", "_"));

               CompilerParameters cp = new CompilerParameters();

               // Generate an executable instead of 
               // a class library.
               cp.GenerateExecutable = true;

               // Specify the assembly file name to generate.
               cp.OutputAssembly = exeName;
   
               // Save the assembly as a physical file.
               cp.GenerateInMemory = false;
   
               // Set whether to treat all warnings as errors.
               cp.TreatWarningsAsErrors = false;

               // Invoke compilation of the source file.
               CompilerResults cr = provider.CompileAssemblyFromFile(cp, 
                   sourceName);
   
               if(cr.Errors.Count > 0)
               {
                   // Display compilation errors.
                   Console.WriteLine("Errors building {0} into {1}",  
                       sourceName, cr.PathToAssembly);
                   foreach(CompilerError ce in cr.Errors)
                   {
                       Console.WriteLine("  {0}", ce.ToString());
                       Console.WriteLine();
                   }
               }
               else
               {
                   // Display a successful compilation message.
                   Console.WriteLine("Source {0} built into {1} successfully.",
                       sourceName, cr.PathToAssembly);
               }
             
               // Return the results of the compilation.
               if (cr.Errors.Count > 0)
               {
                   compileOk = false;
               }
               else 
               {
                   compileOk = true;
               }
           }
           return compileOk;
       }