捕鱼来了s级炮台哪个好:一个老问题 ，我的电脑老弹网页

电脑比较老 没有杀毒软件
不知道怎么老弹网页，用尽了很多方法
下面是HijackThis的扫描日志，请高手指点：谢谢

Logfile of HijackThis v1.99.1
Scan saved at 0:12:07, on 2006-8-14
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Unable to get Internet Explorer version!

Running processes:

O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - d:\Program Files\Thunder\ComDlls\XunLeiBHO_001.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\RunOnce: [{9D0351F9-8E49-4ed1-BBCE-0795F5B9F240}] C:\WINNT\system32\richnotify.exe
O4 - HKCU\..\Run: [Internat.exe] internat.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O8 - Extra context menu item: &使用迅雷下载 - d:\Program Files\Thunder\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - d:\Program Files\Thunder\Program\GetAllUrl.htm
O10 - Unknown file in Winsock LSP: c:\winnt\system32\cdnns.dll
O10 - Unknown file in Winsock LSP: c:\winnt\system32\quartz32.dll
O10 - Unknown file in Winsock LSP: c:\winnt\system32\quartz32.dll
O14 - IERESET.INF: SEARCH_PAGE_URL=
O14 - IERESET.INF: START_PAGE_URL=
O16 - DPF: {C661F36D-DF85-4EF4-83C7-E107B83D04B1} (WebActivater Control) - http://dl_dir.qq.com/3dshow/3DShowVM.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{6CC460FE-B3CA-4EB6-A4E0-CEDB4E1C8017}: NameServer = 210.40.64.33
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Windows XP Vista - Unknown owner - C:\WINNT\Vista.ini

解决的话有奖励20分。谢谢
不是那些随便自动弹出窗口，是如 退出163信箱的时候弹出的广告网页。