upperfilter

.inf file AddRegistry section flag meaning (HKR,,"UpperFilters",0x00010008,"upperfilt" ) what does 0x00010008 stand for ?

At MSDN Installing a Filter Driver there is a sample file given (reproduced lower). In the [upperfilter_addreg] section there is the registry line HKR,,"UpperFilters",0x00010008,"upperfilt". What is the meaning of the 0x00010008 flag ? Note that this file is meant to install an Upper Filter Driver. Thank you microsoft for your great...