C#

// to thow an exception
throw new Exception("The error text here.");

// catch an exception
try
{
   // This method throws an exception [as above] if something is wrong
   SomeFunction();
}
catch
{
  MessageBox("There was an error with your input!");
}

Email: theeclypse@hotmail.com   URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

[RunInstaller(true)] public class ServiceInstaller: Installer
{
  private System.ServiceProcess.ServiceInstaller svcInst;
  private System.ServiceProcess.ServiceProcessInstaller processInstaller;

  public  ServiceInstaller()
  {

    processInstaller = new System.ServiceProcess.ServiceProcessInstaller();
    svcInst = new System.ServiceProcess.ServiceInstaller();

    // Service will run under the system account
    processInstaller.Account = ServiceAccount.LocalSystem;

    svcInst.StartType = ServiceStartMode.Manual;
    // These are the other possible valuse for ServiceStartMode...
    // ServiceStartMode.Manual
    // ServiceStartMode.Automatic
    // ServiceStartMode.Disabled
  

    svcInst.ServiceName = "EWService";
    svcInst.DisplayName="EW Sample Service";
    Installers.Add(svcInst);
    Installers.Add(processInstaller);
  }
}

[ClassInterface(ClassInterfaceType.None)]<br />
public void AppendPrivatePath(<br />
   string path<br />
);