Hi nuhi, you know the inf files better than me, i said that because those line are sometimes a problem, because if they are empty indirectly play the role of the delete, in the inf in windows in general microsoft adds them sometimes just so 'HKCR, KeyName, , ,' or 'HKCR, KeyName, ,0x10' never in 'HKCR, KeyName', eg 'HKCR, KeyName' delete default value of KeyName, and all windows applications (when run EnumKey\EnumValues) do not know after default Values, but as valid Values and void, and this sometimes creates Error\problems, so I said before better to avoid those types of line in AddReg Section, so my report was only be careful there, nothing else sorry again for my english Ciao.