Yuri's Revenge Update 5.1

[FOLK]

I just recently downloaded Yuris revenge and when i go to play, it says to update to the latest version 5.1 i believe, so i do. It starts to download and acts like it is complete but then kicks me out of the game and to my desktop where a command prompt window is open. I cant get the game to stop playing the music even though it wont display, which i ultimately have to restart my computer.  Any help would be appreciated because i have been trying to play online with a friend. Thank you.