Vi ringrazio anticipatamente, se qualcuno può aiutarmi a togliere questi fastidiosi dialer. Allego il log scaricato da HijackThis

Logfile of HijackThis v1.99.1
Scan saved at 22.52.01, on 25/09/06
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\PROGRAMMI\FILE COMUNI\SYMANTEC SHARED\CCEVTMGR.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\IRMON.EXE
C:\WINDOWS\DSLAUNCH.EXE
C:\WINDOWS\SYSTEM\TOSHIBSU.EXE
C:\WINDOWS\SYSTEM\THOTKEY.EXE
C:\WINDOWS\SYSTEM\PWRTRAY.EXE
C:\WINDOWS\SYSTEM\PSPCCARD.EXE
C:\WINDOWS\SYSTEM\TESCKEY.EXE
C:\WINDOWS\SYSTEM\TFUNCKEY.EXE
C:\MOUSE\SYSTEM\EM_EXEC.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\PROGRAMMI\HEWLETT-PACKARD\HP SHARE-TO-WEB\HPGS2WND.EXE
C:\PROGRAMMI\HEWLETT-PACKARD\HP SHARE-TO-WEB\HPGS2WNF.EXE
C:\PROGRAMMI\IOMEGA HOTBURN\AUTOLAUNCH.EXE
C:\PROGRAMMI\FILE COMUNI\SYMANTEC SHARED\CCAPP.EXE
C:\WINDOWS\RunDLL.exe
C:\WINDOWS\TIMED.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\PROGRAMMI\ADOBE\ACROBAT 4.0\DISTILLR\ACROTRAY.EXE
C:\PROGRAMMI\NIKON\NKVIEW6\NKVMON.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\OSA.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\FINDFAST.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAMMI\ALICE TI AIUTA\BIN\MPBTN.EXE
C:\PROGRAMMI\ALICE\ALICE ENTERNET\APP\ENTERNET.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\PROGRAMMI\ADOBE\ACROBAT 4.0\ACROBAT\ACROBAT.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\POWERPNT.EXE
C:\PROGRAMMI\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAMMI\MICROSOFT OFFICE\OFFICE\WINWORD.EXE
C:\PROGRAMMI\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\HIJACKTHIS\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer fornito da Alice
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - c:\Programmi\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - c:\Programmi\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [ScanRegistry] c:\windows\scanregw.exe /autorun
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [IrMon] IrMon.exe
O4 - HKLM\..\Run: [YAMAHA DS-XG Launcher] c:\windows\dslaunch.exe
O4 - HKLM\..\Run: [TOSHIBSU] TOSHIBSU.EXE
O4 - HKLM\..\Run: [THotkey] THotkey.exe
O4 - HKLM\..\Run: [TDspOff] TDspOff.Exe B
O4 - HKLM\..\Run: [PowerTray] PwrTray.EXE
O4 - HKLM\..\Run: [PsPCCard] PsPCCard.EXE
O4 - HKLM\..\Run: [EM_EXEC] c:\MOUSE\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [Share-to-Web Namespace Daemon] C:\Programmi\Hewlett-Packard\HP Share-to-Web\hpgs2wnd.exe
O4 - HKLM\..\Run: [Drag'n'Drop_Autolaunch] "C:\Programmi\Iomega HotBurn\Autolaunch.exe"
O4 - HKLM\..\Run: [ccApp] c:\Programmi\File comuni\Symantec Shared\ccApp.exe
O4 - HKLM\..\Run: [ccRegVfy] c:\Programmi\File comuni\Symantec Shared\ccRegVfy.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [ccEvtMgr] c:\Programmi\File comuni\Symantec Shared\ccEvtMgr.exe
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Programmi\File comuni\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKCU\..\Run: [Taskbar Display Controls] RunDLL deskcp16.dll,QUICKRES_RUNDLLENTRY
O4 - Startup: Acrobat Assistant.lnk = C:\Programmi\Adobe\Acrobat 4.0\Distillr\AcroTray.exe
O4 - Startup: NkvMon.exe.lnk = C:\Programmi\Nikon\NkView6\NkvMon.exe
O4 - Startup: Avvio Office.lnk = C:\Programmi\Microsoft Office\Office\OSA.EXE
O4 - Startup: Ricerca rapida.lnk = C:\Programmi\Microsoft Office\Office\FINDFAST.EXE
O4 - Startup: Alice ti aiuta.lnk = C:\Programmi\Alice ti aiuta\bin\matcli.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: Alice - {CDE289C0-2ECD-11DA-BF25-B08359C11000} - http://gw.aliceadsl.it/alice (file missing) (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://gw.aliceadsl.it/home