Visual Studio .NET - Use WINDOWS SERVICE

For that you have to Use WINDOWS SERVICE.

Its easy just go thr these steps;    

1.Open Visual Studio.net > Select New Project 

     2.Select Windows Service and give Name as 'GoodDay' and Click Ok.

     3.Right Click the Design and Select Properties and give the Name and ServiceName as 

        'GoodDay' and set AutoLog to 'True'

     4.Drag and drop the OleDbConnection and Select its properties and change its name to

        'conn' and provide the connection String(I provided the Database sample(Ms

         Access)) along with this code.

     5.Right Click the Design and select View Code and

        Select Project > Add Reference > Select System.Web >Press Ok

     6.Now add the following to your code         

          using System.Web.Mail;

          using System.Data.OleDb;

     7.Declare DateTime mdt=DateTime.Now;

     8.    In static void Main()

         Edit the following Code

        ServicesToRun = new System.ServiceProcess.ServiceBase[] { new GoodDay() };

protected override void OnStart(string[] args)

{

DateTime dt=DateTime.Now;

conn.Open();

OleDbDataAdapter da=new OleDbDataAdapter("select * from Empdata",conn);

da.Fill(ds);

if(dt.ToShortDateString()==mdt.ToShortDateString())

{

foreach(DataRow dr in ds.Tables[0].Rows)

{

mdt=DateTime.Now.AddDays(+1);

String mailtxt="";

MailMessage mm = new MailMessage();

mm.BodyFormat = MailFormat.Html;

mm.To = dr["emp_email"].ToString();

mm.From = "xyz@xyz.com";

mm.Subject="Good Day";

mailtxt = "<font face='verdana' color='#FF9900'><b>"+"Hi "+dr["emp_name"].ToString()+"," + "</b></font><br><br>";

mailtxt=mailtxt+"<font face='verdana' color='#FF0000'><b>"+"Good Day." + "</b></font><br><br>";

mailtxt=mailtxt+"<font face='verdana' color='#008080'><b>"+"May today be filled with sunshine and smile, laughter and love." + "</b></font><br><br>";

mailtxt=mailtxt+"<font face='verdana' color='#0000FF'><b>Cheers!" + "<br><br>";

mm.Body = mailtxt;

SmtpMail.SmtpServer="localhost";

SmtpMail.Send(mm);

}

}

}

10.Go to Design,right click and Select Add Installer ,you will notice two controls

     serviceProcessInstaller1,serviceInstaller1

11.Select  serviceProcessInstaller1 and go to its properties and change the Account

      type to 'Local System'

12. Select  serviceInstaller1 and go to its properties and change DisplayName and

      ServiceName to 'GoodDay' and make the StartType to 'Automatic'

13.Build the Solution(Cntrl+Shift+B)

14.Open the Visual Studio .Net Command Prompt and give the path of application

     for example C:\bin\Debug and then type InstallUtil GoodDay.exe
                

     to uninstall,  InstallUtil    /u GoodDay.exe         

15. After Installation ,right click My Computer and

       Select 'Manage'

       and Select 'Service and Applications'

       and in that Select 'Services'

Select 'GoodDay' and start the Service.

Best Luck!!!!!!!!!!!!!!!!!
Sujit.