谢谢猫叔的指点！
还有一个问题：
我用hijackthis修复了几个项目，当时明明已经备份了。可是第二天打开备份列表却是空的。这是怎么回事？
我看到备份列表有提示（病毒程序可能会删除hijackthis作的备份！）请问我的电脑是不是还有病毒？
HijackThis_zww汉化版扫描日志 V1.99.1
保存于 9:28:53, 日期 2006-9-16
操作系统： Windows 2000 SP4 (WinNT 5.00.2195)
浏览器： Internet Explorer v6.00 SP1 (6.00.2800.1106)
当前运行的进程：
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\System32\nvsvc32.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\Explorer.EXE
C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe
C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
C:\WINNT\system32\internat.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
D:\PROGRA~1\MICROS~1\OFFICE11\OUTLOOK.EXE
D:\Program Files\SolidWorks\SLDWORKS.exe
D:\Program Files\AutoCAD 2006\acad.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
D:\Program Files\WoptiUtilities\WoptiMem.exe
D:\Program Files\TTPlayer\TTPlayer.exe
F:\软件备份\HijackThis\HijackThis1991zww.exe
R3 - URLSearchHook: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\Program Files\Yahoo!\Assistant\Assist\yasbar.dll
O3 - IE工具栏增项: @msdxmLC.dll,-1@2052,电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - IE工具栏增项: 雅虎助手 - {406F94F0-504F-4A40-8DFD-58B0666ABEBD} - C:\Program Files\Yahoo!\Assistant\Assist\yasbar.dll
O4 - 启动项HKLM\\Run: [Synchronization Manager] mobsync.exe /logon
O4 - 启动项HKLM\\Run: [yassistse] "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe"
O4 - 启动项HKLM\\Run: [kav] rem "c:\program files\kaspersky lab\kaspersky anti-virus 6.0\avp.exe"
O4 - 启动项HKLM\\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - Global Startup: AutoCAD 启动加速器.lnk = C:\Program Files\Common Files\Autodesk Shared\acstart16.exe
O9 - 浏览器额外的按钮: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - 浏览器额外的“工具”菜单项: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = meibao.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = meibao.com
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = meibao.com
O20 - Winlogon Notify: klogon - C:\WINNT\system32\klogon.dll
O23 - NT 服务: Autodesk Licensing Service - Autodesk - C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
O23 - NT 服务: 卡巴斯基反病毒软件6.0 (AVP) - Unknown owner - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0\avp.exe" -r (file missing)
O23 - NT 服务: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - NT 服务: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINNT\System32\nvsvc32.exe
O23 - NT 服务: System Set Service (SystemSet) - Unknown owner - C:\WINNT\system32\service.exe
