I am attempting to install Exchange Server 2003 on Windows Server 2003 R2. I have installed all of the prerequisites as far as I can tell. When I run the install program and try to tell it to do a typical install it comes up with an error message saying that the NNTP component of IIS is either not installed or disabled. I have installed the component and check in the IIS management console to make sure it is enabled, which it is. Any ideas?