Web Application Configuration Analyzer (WACA) is a tool that scans a server against a set of best practices recommended for pre-production servers. It can also be used by developers to ensure that their codebase works within a secure / hardened environment (although many of the checks are not as applicable for developers). The list of best practices is derived from the Microsoft Information Security & Risk Management Deployment Review Standards used internally at Microsoft to harden production and pre-production environments for line of business applications. The Deployment Review standards themselves were derived from content released by Microsoft Patterns & Practices, in particular: Improving Web Application Security: Threats and Countermeasures available at:

Here are some features of the tool:
Scan a server using more than 140 rules
Generate HTML based reports
Compare multiple scan results
Export results to Excel
Export results to Team Foundation Server