Help with Wololo Kingdoms installation for HD.

I'm trying to install WK with the Age 2 HD compatibility patch for voobly, but I always get an error at 10% installation. It says my game is running...

I noticed that everytime I run WololoKingdoms.exe steam actually count Age 2 HD as "running", maybe this is what causing the problem?

But I really cant turn this problem around, there is no "Age HD" or anything like in the Task Manager so I cant end process or anything without closing WololoKingdoms.exe itself.

Already tried to send a msg to the WK dev but he does not answer...