Dears
I would like to share this info when installing k2 black pearl on a 64 bit operating system(2008 server).
when installing k2 make sure you have big space on your machine (40G) or more. this is due to a folder called WINSXS which consumes most of the space after installing the prerequisites of k2.
vsp1cln.exe and compcln.exe are the files used to reduce it's size; but i coluldnt locate them on 2008 server not on sp1 or sp2