Note: You can only send messages to users if they are online
From the tool bar, click the Download button or tab. The Download window opens.
From the Download window, select a file.
Either double click the file name, or on the toolbar, click the Details button. The Details window opens.
Right click the name of the user that you want to contact. A menu appears. You can choose to either add the user to your Contact list, or send a message immediately.
If you want to send a message, click Send Message. A message form appears. Type your message and click Send.
If you want to add the user to your Contact list, click Add to Contacts.