You will never get rid of the spam slithering into your Yahoo mail, trackers and keystroke loggers pick up key words and generate more spam in their mail program as well. Have you noticed that if you are communicating with email that you start to recognize familiar names being use in the 'from' line of the spammers and subject matter that you've conversed about turns up in weird ways. Have you noticed that the more spam you remove, it starts multiply, Yahell is a Catch22.
There are no programs available to go in and remove this "deeply buried in your registry" spyware. My son knew what he was looking for and how to remove it safely without destroying the system. Apparently he had to go key by key (hence the garbled mumbling for hours while he was cleaning my machine) through the entire registry and read and decipher codes....he also informed me that he has now evened the score for labor and delivery and if I ever ask him to do it again he'll turn my PC into a well watered planter. When I called him this morning he answered with......"Tech support, may I have you credit card number and expiration date before we continue this call." I really need to remember that *67 thing.