First you will need to download the client from its official location. You will need to have your software installed in your computer because the client will scan for installed applications. After these two requirements have been met simply perform a Refresh using the refresh button and when the servers will be updated, the entry with your software's name will be available from the website.
Once you complete this process, you can register with an username and navigate to the entry page of your software and add detailed information using the Suggest a correction link found on the left side.
