It usually Say: Could not inject or something.. if the game doesnt crashes it IS WORKING!!! Just press Delete and you can use it.. i always get an error but it works fine.. just the chams are a problem
You can fix the crashes by going to the BFH directory and setting BFheroes.exe compatibility to "Windows XP (Service Pack 2.)" This solves the crash. If that doesn't work, than download the DX9 Redist.