For those of you who'd prefer to generate an OAuth refresh token using only a browser, there's a new guide on how to use the OAuth 2.0 Playground : https://developers.google.com/adwords/api/docs/guides/oauth_playground The guide walks you through the authorization setup required by the AdWords API for a Web application -via a browser session-without the need to execute any command-line scripts. More OAuth resources OAuth 2.0 Authentication for the AdWords API Using OAuth 2....