Ruslan Yakushev has a new post talking about the latest release of Microsoft's PHP Manager for IIS being available in their Web Platform Installer.

PHP Manager 1.1 for IIS 7 has been released today. This is an incremental release that contains all the functionality available in PHP Manager 1.0 for IIS 7 plus additional features: [...] improved detection logic for existing PHP installations, configuring date.timezone, ability to add new PHP extensions.

You can find out more about the PHP Manager for IIS7 from the CodePlex project for it and can find a complete list of changes in its changelog.