I have been having the same problem ever since I updated CCleaner a long time ago. I got curious about it today and started searching for it and found this. This problem has been appearing for 1-2 years now and one thing I've noticed is that it starts with "@"C:// in which no other registry fix I've done have had such description.
Location
Problem: Data: Registry Key
Missing MUI Reference @C:\WINDOWS\system32\en-US\mstsc.exe.mui,-4004 HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache
I have WinXP SP3, Firefox 3.6, iexplorer 6, Disables all of that remote s**t ages ago... btw the files are not the same, one is 6.0.6001.18000 the other 6.0.6001.18266... but they are like that in the winxp original iso so i don't think that is the problem... My beliefs are that this is a CCleaner Easter Egg.
Hope this helps.
