set NUGET_CREDENTIALPROVIDERS_PATH=C:\NuGet\CredentialProviders
/opt/nuget/credentialproviders/MyProvider Windows (Command Prompt) nuget_credentialproviders_path
C:\NuGet\CredentialProviders\MyProvider.exe Or on Linux: nuget_credentialproviders_path
$env:NUGET_CREDENTIALPROVIDERS_PATH="C:\NuGet\CredentialProviders" nuget_credentialproviders_path