PHP with IIS is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP with IIS and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.
What's new in this version:
Version 5.5.1 is a bug fixing release.