If you want using send mail on windows without installing smtp server
you can done it, fallow below step and done process.
1. Windows 7/vista , 2003/2008 server
2. sendEmail-v156-notls.zip or above ( download to this link
Put the zip file where you want like C:\sendEmail-v156-notls.zip
extract this and rename folder name : sendEmail-v156-notls to sendmail
Add event :
Got o Event Viewer > Task Scheduler > Operational > right click on alert massage and attached task to this event