.NET Gotcha
If you are unable to select the appropriate .NET version in IIS Application Pools OR if you are unable to set the ASP.NET version to version 1.1 for the Data Academy installation website, open a Command Prompt (Start, Run, “cmd”) and type “cd C:\Windows\Microsoft.NET\Framework\v2.0.50727”, then press Enter (for .NET 1.1 for older versions of Data Academy, use v1.1.4322 instead). Then type “aspnet_regiis -i” and press Enter.