Compiled public build for Fiddler Classic.
Extract DomainReputationInspector-1.0.0.zip, then run install.bat from the extracted folder. The installer copies the extension into %USERPROFILE%\Documents\Fiddler2\Scripts.
This build does not include API keys. Paste your own VirusTotal key into the Domain Reputation tab and click Save. ET Open is the default and does not need a Pro key.
Source, build.bat, and nuget.exe are on the main branch.