3. Check whether your profile has API Enabled permission.
5. Extract the downloaded file.
Note: In command Prompt, make sure you navigate to the drive where it has been extracted.
10. Code for Visualforce and Apex.
11. Create a PushTopic using the below code in Developer Console.
12. To test it, open the visualforce page. Open Accounts tab and create a new account with Active check box true. If you go back to the Visualforce page, the account created will be displayed there.