you'll see a Explorerframe.dll and a Explorerframe (2).dll 

why?

if you're using 64bits windows 7, windows uses 2 different explorer frames.

where do i need to put them?

Explorerframe.dll	copy to	--> C:/Windows/System32/		= 1,77MB

Explorerframe (2).dll	copy to	--> C:/Windows/SysWOW64/		= 1,42MB