This method is useful for shutting down his/her computer just by sending an e-mail
To accomplish this you need to have Microsoft Outlook (from MS Office) and it should be installed on your PC
So, this is how you do this:
1. First, you need the batch files to perform the Shutdown, Hibernate etc. You can write them down yourselves or can download them from here
2. Extract them to your C:\ drive so the path to the shutdown batch file is C:\sms_functions\shutdown.bat (Important the path must be exact) or you can modify the rule once you import it to point to the new destination.
3. Open up Microsoft Outlook. Make sure that you have already configured it for your email. Now we will need to make it so that Outlook checks your inbox about every minute (1 minute for testing time can be increased if a delayed shutdown is desired). You can do this by going to Tools: Options.
4. Then click the Mail Setup tab, and afterwards, the Send/Receive button.
5. Make sure that the Schedule an automatic send/receive every… box is checked, and set the number of minutes to 1.
6. Now go to Tools: Rules and Alerts… Next click the options button in the upper right hand corner and press the Import Rules button.
7. Now select the shutdown.rwz file that was found in the zip file named sms_functions that you downloaded.
8. Now, when you send a message from your phone to your e-mail address with the subject smsshutdown%%, your computer will shutdown.
You can also make your own rule, so that you can use your own batch file, and may specify the phrase you want to trigger the action.
Comment on this if it works 
NOTE: This tutorial is NOT written by me, this is collected from Internet
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