IIS_WPG (and IIS_IUSRS) member of "Authenticated Users" group?

I need a confirmation that IIS_WPG and the newer one IIS_IUSRS are also members of the "Authenticated Users开发者_高级运维" group. Can someone confirm this or am I wrong?

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The IIS_WPG user is a the IIS Worker Process Group, and is needed in order for IIS to run / access applciations within a folder

The IIS_IUSRS is a the Internet Guest Account, this is used to allow anonynous access to the folder / files. This is needed if you want the general public to be able to view anything in the folders e.g. a website.

They are not norally part of the "Authenticated Users" group and normally require you to grant access seperatly.