How to read IIS metabase information

[Krausssj]

I need to be able to change all service account passwords on a 90 day cycle. I can read the services on all systems and make this happen, but I don't know how to find the user account which is used for anonymous access on any of the IIS sites which exist on our web servers. Can anyone point me in the right direction?? I am writing my application in vb.net.

Thanks in advance for any help,

Steve