How to send a personal message (PM) in Yahoo Messenger with C#?

How do I send a personal mess开发者_如何转开发age (PM) to a Yahoo user in Yahoo Messenger using C#?

Use the Yahoo Messenger SDK for this.

1. sniff the packet. yahoo packet

2. create function for your packet

3. create socket class to send & revise

4. get cookies from login.yahoo.com by send your username & password

5. get data and pick Y&T cookie

6. send your Y&T with your id to login yahoo

7. revise data ...