Over the last half year or so I've come across problems with Trends Micros serverconsole at given versions of IIS. When you try to access it you get the normal message that the certificate is invalid and blah blah continue on your own risk of destruction. Thats quite normal, but when you do, you get the 403 message saying you're not authorized to access that page, and no matter how much you refresh, restart or bang the screen, it wont work.
So, how to fix it.
The problem is in the application pool that Trend Micro is assigned, the defaultapp pool in IIS. However, at some point, Microsoft wanted to make IIS more safe, and therefore made the default application pool a bit more secure, and removed some permissions. That isnt really working for Trend, and you have to do some fiddling around to sort it.
The following article from Trend Micro explains it in detail.
http://tinyurl.com/3ez7sb
(using TinyURL cause this stupid editor cant handle questionmarks)
When you get to step 7 the important part shows up. It determines how the permissions for the site will be set. Personally I set it to local system as long as I know its a closed system, and it works wonders. Just follow the walkthrough to the end, restart the webservice, and voila, Trend Micro console works.
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