We still need good tools to help troubleshoot SSL issues on IIS 7 and IIS 7.5. Then we have two choices,
Use The Official SSL Diagnostics Tool for IIS 6
1. Turn on IIS 6 Compatibilities features on IIS 7.*.
2. Install SSL Diagnostics 1.1 for IIS 6.
3. Run SSL Diagnostics tool as administrator.
Use This Non-official SSL Diagnostics Tool for IIS 7.*
My colleague Vijayshinva created this small tool for IIS 7.* and it works fine without IIS 6 compatibilities,