Iis Express Application Compatibility Database [verified] -

For 95% of developers, it does its job perfectly, silently bridging the gap between legacy app behaviors and modern security requirements. It deserves 4 stars for the utility it provides, losing one star only because debugging it when it goes wrong requires knowledge that is strictly "Power User" territory.

Because IIS Express runs as a normal process rather than a system service, the database helps manage permissions so developers can debug applications without elevated administrative privileges. Installation and Registry Presence iis express application compatibility database