Controlling a Windows 8 Computer with SMS opens up lots of possibilities. You can do almost anything using a SMS Controlled Windows 8 Computer remotely. Simple things like Remote Shutdown, Restart or other computer control functions can be automated by controlling a Windows 8 Computer with Appropriate Software. Now a days there are lots of Inexpensive Data Modems which allow you to connect to internet with connectivity of 2G, 3G, 4G, etc Mobile Network. These Data Modems also provide SMS Functionality and few provide voice calling facility as well. The Software Solution talked about here is a combination of a Computer running Windows, Data Modem (with enough balance to send / receive SMS messages) and a custom built software application.

Attributes of a Data Modem Displayed by Daanav Data Card Checker
As displayed in the screenshot above, the Daanav Data Card Checker is plugged into a Windows 8 Computer. The Daanav Data Checker can send / receive SMS messages and can launch shortcuts / shutdown computer or even control other devices connected to the Windows Computer using appropriate API available. The Daanav Data Card Checker simply displays various attributes of the Data Card connected to the Windows 8 Computer. As the Software can interact using only SMS, there is no need of an active internet connection and hence this way of controlling Windows computer remotely becomes inexpensive and easy to manage.
The method talked above is to control Windows 8 or any other Windows Computer with SMS only. Although a custom software solution can take advantage of internet connectivity as well. This way of controlling Windows Computer by SMS works in a similar way in which GPS Trackers work. The Custom Software Solution takes into consideration which SMS commands will be sent and whether the Computer has to reply back to the SMS Sender or not. Custom Software Development can get you anything programmed to control Windows computers by SMS only or even using the Internet Connectivity.