yes, I figure out the deadly combination now I first installed Xpize with the above switch , then installed the MUI normally, change the interface from control panel > Restart like I said above, some icons and items still in english while with the Windows and MUI files but without xpize, the WHOLE interface become arabic like expected Oh man, this is a hard choice, I'm gonna make my uAXPPRESP3 CD next couple of dayz and I have to remove one of them