Challenge: Changing the stored credentials on 64 instances of IIS every 30 days

I'm no web farmer, and don't have responsibility for any web farms. But here's an interesting challeng I've been asked about, second hand.

Say you have 64 instances of IIS 6.0, running on 64 different machines.

You've set the credentials in IIS to use a particular domain user, say "MyDomain\MyIISAdmin"

But every 30 days the password will be changed, in line with corporate policy.

The "solution" according to one company was "Well you'll just have to change it manually because microsoft have no solution to this."

I don't buy that for a second! What would be your plan of attack? How would you crack this tough nut?

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