I ran "sfc /scannow" since KB980218 was not installing in my desktop. After running it sfc tells me C:\Windows\SysWOW64\en-US\iassdo.dll.mui is corrupt. Could someone please share this file? It is only about 6kb. I checked, the strange thing is when I extract the file from installation CD (from sources\install.wim), it is same as the file I already have! Many other people seem to have problem with this file based on google search results. Not sure what is the source of this confusion.