Question about pinning icons to the taskbar

[juniorninety]

I have a few programs pinned to my taskbar and some programs will make a new icon on the taskbar when I open them and some won't.

http://i.imgur.com/Q9Y4yu6.jpg

In the picture Chrome, Steam and Skype do not make a new icon when I open them but League of Legends, iTunes and Battle.net do. How can I set it so none of the programs make a new icon when I open them?

 

[Slashgeek]

This is a known issue with several programs, notably those three that you mentioned - Battle.net, iTunes, and League of Legends. In the case of LoL, I believe it's because that while you pin the Launcher, when you start the game, it actually opens the Client as a separate executable.