You seem to be the victim of a "backdoor" installation of a dialer program...a "drive-by" download by a sleazy website.....
very common....
Spybot detects & removes over 50 different dialers....yours may or may not be in their database.........give it a shot.
D/L------>
http://tomcoyote.org/SPYBOT/index1.php
after installing........hit "Search for Updates".........get them
all.....then "Check for Problems". When the scan is complete, allow Spybot to remove everything listed in
RED.
Update your AntiVirus...most AVs detect at least a few dialers..& do a full scan.
You can d/l a program called HijackThis
http://www.merijn.org/files/HijackThis.exe
to a folder of your choice..doubleclick......hit "Scan"...then "Save log"......when it opens in notepad.....copy (edit..select all..copy) the log.......at
Spyware Info.....you can join, or post as a guest, if you prefer. Start a new topic..paste (CTRL-V) your log into your reply......& if the dialer's still there......it'll show up in the log & someone will point that out & tell you how to get rid of it.