to the gurus of the infs: flags This optional hexadecimal value, expressed as an ORed bitmask of system-defined low word and high word flag values, defines the data type for a value entry and/or controls the add-registry operation. Bitmask values for each of these flags are as follows i don't understand this settings of the CopyFiles section...can i have some examples? i want that my custom installer doesn't ask me if i want to overwrite files if they are already in the destination dir, so i want to set some flags (0x00000048), including the flag to copy the files in use on the next reboot (0x00000008), but i think that the sum is not correct.....0x00000048. Infact it doesn't work. I need help. Thanks s0 much.