I've downloaded SC on my friend's CPU from battle.net but they say they do not recognize my version, wtf?
Blizzard error message say it's a virus O_O

... there really isn't much more to talk about.
Thanks for help! =)

P.S. >

Which Windows does he use? In my computer (Win7) I have to close explorer.exe with task manager otherwise it won't allow me to log in.

BTW yesterday I made a new topic to solve this problem

SO try closing explorer.exe before running sc

...and to reopen it with task manager typing "explorer.exe" without "