Back in the days of dialup modems, this used to be a problem, but in the days of broadband access, the need for Rasputin has largely diminished.
So unless you're a dialup user, or your broadband ISP disconnects you after a certain interval of non-use, you'll need Rasputin only if you're having connection problems. It may help to maintain a 3G connection, too.
If that's the case, however, you'll find Rasputin a breeze to run. Install it, tell the program your kind of internet access, and tell it the interval at which you want to send a signal, and it quietly goes about doing its work. Too bad that so few people will need it.
Rasputin is perfect for maintaining a dialup or time-out broadband internet connection. If you need it, it will work well for you.