What's your OS? I'm guessing this is a program that's running at startup. Unless you're using anything other than 95 or 2k you should be able to disable it in MSCONFIG and then remove it after a reboot (assuming you can find it based on what MSCONFIG tells you).
I don't suggest following JP's advice..
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Assuming he's knows what to remove then safe-mode would work. The nice thing about MSCONFIG is you can disable on thing at a time. Once you're sure what it is just delete it.
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Registered Linux User: 288411
Licensed Windows XP User
If it's a new dialer and ad aware haven't added support for removing or just haven't updated them properly?
Go to your windows folder and look for anything suspicous like make having dialer or maybe an icon that the dialer had and open up spybot and shredding it, also search the program files too.
Also if it is reautomatically readding itself, then it maybe a running process and you will need to kill it then go about shredding it.