Running Drupal in a Windows environment (IIS, SQL Server)? We are in the process of evaluating Drupal to replace our in-house .NET CMS. We run an IIS 7.5 web farm with a SQL Server 2008R2 on the back end. To make matters worse, we use sql server merge-replication between our primary and secondary collocation facility. Rebuilding the entire web farm structure would be cumbersome. 

Can anyone provide thoughts/feedback/experiences on using Drupal with IIS/SQL server? Bonus points if you know it works sql server merge-replication.
Easiest way is to use the Microsoft Web Platform Installer to install Drupal 7 - http://www.microsoft.com/web/downloads/platform.aspx

The only option it currently provides is using SQL Server as the back-end database, so you should be golden. (The Drupal 6 WebPI installs do not target SQL Server)

I've been running Drupal 7 on a Hyper-V-based VM under Win2k8 R2 with SQL Server Express as the backend DB for a few weeks without incident.