Microsoft Application Request Routing (ARR) for IIS 7 and above is a proxy-based routing module that forwards HTTP requests to content servers based on HTTP headers, server variables, and load balance algorithms. ARR can be used to:
- Increase application availability and scalability.
- Better utilize content server resources.
- Facilitate application deployment including pilot management and A/B testing.
- Lower management costs and create opportunities for shared hosters.
The Application Request Routing installer package contains the following components:
- Microsoft URL Rewrite Module for IIS.
- Microsoft Web Farm Management Version 1 for IIS.
- Microsoft Application Request Routing Version 1 for IIS.
- Microsoft External Cache Version 1 for IIS.
Microsoft Application Request Routing Version 2.5 for IIS 7 (x64)
Microsoft Application Request Routing Version 2.5 for IIS 7 (x86)