Just saw this today - over at iBuildings, they've published a whitepaper on the options for installing and managing PHP on Windows.

The paper can be found here and the TOC looks like:
  • Executive Summary
  • Introduction
  • Where we came from
  • Why Windows?
  • Why PHP over .NET
  • Web Server Choices
  • Deploying and Managing PHP
  • Microsoft Web Platform Installer
  • Beyond the Install
  • Conclusion
Some interesting options if you're running PHP but would prefer a Windows infrastructure. Not sure I agree with some of the reasoning for choosing PHP over Windows (Sourceforge is not the only place to find community projects) but the main thrust of the paper is not about that.