Revcms - HTTP Error 404.3 - Not Found Help

[myhabbbo]

IIS problem, I am using RevCMS, when I try and go on my hotel IP I get the following problem:
Error Summary
HTTP Error 404.3 - Not Found
The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map

Any help would be thankful.

[MentaL]

[flx5]

Seems like you've forgot to install PHP to the IIS.
(Also the Error 404 would be incorrect, but what do we expect from microsoft? :S)