Microsoft’s Application Request Router (ARR) IIS Extension is a complex piece of software which integrates with several other components to do its job. These components are URL Rewrite, Web Farm Framework and ARR’s External Cache module. For things to work correctly, not only do you need all components, but they must also be installed in a specific order, which can be confusing. Several years ago, Microsoft introduced the Web Platform Installer (WebPI) mechanism, which makes it easy to manage installed components. It’s used with many things nowadays, and is also a good way to install ARR and all its components properly and easily.
Occasionally, though, you might find yourself in a situation where you still prefer to avoid using the WebPI installation option. For example, one such scenario is when installing ARR on the Server Core edition of Windows, where WebPI cannot be used. If so, another option you have is installing it using our IExpress package, which includes all the components together. To use it, download it from this page and install.
Another option is to install the components by hand, which will require you to download the components separately. This is the procedure for doing so:
1. Stop IIS first by typing net stop was /y and net stop wmsvc /y on an elevated command-line window:
*** note that WMSVC is the IIS Web Management Service, which might not be enabled on your server. In such a case, trying to stop it will result with The Web Management Service service is not started. This is not unusual and should not be cause for alarm.
2. Download and install the URL Rewrite module. It is currently available in version 2.0
3. Download and install the Web Farm Framework module. It is currently available in version 1.0
4. Download and install ARR itself. It is currently available in version 3.0
5. Download and install the External cache module. It is currently available in version 1.0
6. Start the IIS services back (or, simply reboot your server) and you should be good to go!
If you need to do this on an X86 server, like windows 2008, you can download the X86 version of these components here:
· URL Rewrite X86
· Web Farm Framework X86
· ARR X86
· External cache X86
Read the complete post here