The bottom line is that you can choose to run the game in windowed mode .
That is, in this mode, the game does not take up the entire window, and you can easily do other things (Skype, ICQ, surfing the internet, watching videos and stuff). The game supports a choice of very little permissions to run WINDOW: 1024x768, 1280x800, 1600x900. I sit with 1280x720 resolution and put the game 1024x768, and on the startup window will automatically cut off the bottom of the screen (it cannot even be stretched).