机子开机时出现EXPLORER.exe错误，机子所有的EXE文件都不能正常运行，一打开马上显示文件错误，马上就关了！！请求帮忙！！
好了，我去安全模式下呆住机会扫了下来，请大家帮忙看看！！！
下面是日志：
2006-09-20,22:28:00
System Repair Engineer 2.0.21.505 (2.0 RC 2)
Smallfrogs (http://www.KZTechs.com)
Windows 2000 Professional Service Pack 4 (Build 2195)
- 管理权限用户 - 完整功能
以下内容被选中：
所有的启动项目（包括注册表、启动文件夹、服务等）
浏览器加载项
正在运行的进程（包括进程模块信息）
文件关联
启动项目
注册表
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
<winlogon><C:\WINNT\system32\ControlPanel.{21EC2020-3AEA-1069-A2DD-08002B30309d}\ControlPanel\winlogon.exe> []
<zz><C:\WINNT\system32\intenet.exe> []
<rx><C:\WINNT\system32\explore.exe> []
[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows]
<load><C:\WINNT\rundl132.exe> []
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
<SoundMan><SOUNDMAN.EXE> [Realtek Semiconductor Corp.]
<internat.exe><internat.exe> [Microsoft Corporation]
<Synchronization Manager><mobsync.exe /logon> [Microsoft Corporation]
<RavTask><"f:\Rising\Rav\RavTask.exe" -system> [Beijing Rising Technology Co., Ltd.]
<mmsk><F:\工具\木马杀客\mmsk.exe> [木马杀客]
<AssistSystray><C:\Program Files\TweakAssist\AssistSystray.exe> [全能助手工作室]
<ms><C:\Program Files\Microsoft\svhost32.exe> []
<NvCplDaemon><RUNDLL32.EXE C:\WINNT\system32\NvCpl.dll,NvStartup> [NVIDIA Corporation]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
<WinAutoUp><C:\WINNT\AutoUp.exe> []
<AlxInit><C:\WINNT\system32\AlxUp.exe> []
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
<shell><EXPLORER.EXE> [Microsoft Corporation]
<Userinit><C:\WINNT\system32\userinit.exe,> [Microsoft Corporation]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks]
<{32CD708B-60A7-4C00-9377-D73EAA495F0F}><C:\WINNT\system32\RavExt.dll> [Beijing Rising Technology Co., Ltd.]
<{08315C1A-9BA9-4B7C-A432-26885F78DF28}><> []
<{25E1EECB-E580-4032-97A2-A456D33820D1}><C:\Program Files\Outlook Express\mqq.dll> []
<{6E44887F-5214-41F2-AB46-4728735C4CC6}><C:\Program Files\Internet Explorer\PLUGINS\system.sys> []
<{9A0CFC58-5A6F-41ba-9FFE-4320F4F62FBA}><C:\WINNT\system32\cnscheck.dll> []
<{06A48AD9-FF57-4E73-937B-B493E72F4226}><C:\Program Files\Common Files\Microsoft Shared\MSINFO\WinInfo.rxk> []
<{99F1D023-7CEB-4586-80F7-BB1A98DB7602}><C:\Program Files\Internet Explorer\IEXPLORE.Sys> []
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellService
ObjectDelayLoad]
<DelayRun><> []
==================================
启动文件夹
[腾讯QQ]
<C:\Documents and Settings\Administrator\「开始」菜单\程序\启动\腾讯QQ.lnk><N>
[腾讯TM]
<C:\Documents and Settings\Administrator\「开始」菜单\程序\启动\腾讯TM.lnk><N>
==================================
服务
[Logical Disk Manager Administrative Service / dmadmin]
<C:\WINNT\System32\dmadmin.exe /com><VERITAS Software Corp.>
[NVIDIA Display Driver Service / NVSvc]
<C:\WINNT\System32\nvsvc32.exe><NVIDIA Corporation>
[Rising Process Communication Center / RsCCenter]
<"f:\Rising\Rav\CCenter.exe"><Beijing Rising Technology Co., Ltd.>
[RsRavMon Service / RsRavMon]
<"f:\Rising\Rav\Ravmond.exe"><Beijing Rising Technology Co., Ltd.>
[sserver / sserver]
<C:\WINNT\help\sserver.exe><N/A>
[StdService / StdService]
<C:\WINNT\system32\rundll32.exe C:\WINNT\system32\STDSVER.DLL,Service><N/A>
==================================
浏览器加载项
[MyIEHelper Class]
{16B770A0-0E87-4278-B748-2460D64A8386} <, N/A>
[AntiFish Class]
{38928D50-8A48-44C2-945F-D2F23F771410} <, N/A>
[SafeMe Internet Explorer Helper]
{3AE06CEE-58A6-4F5F-AF89-6C5350842F16} <C:\WINNT\system32\SafeHelper12.dll, LINKMEDIA Tech>
[]
{3D898C55-74CC-4B7C-B5F1-45913F368388} <C:\WINNT\system32\SecurityC1.dll, CNNET, INC.>
[雅虎助手]
{406F94F0-504F-4a40-8DFD-58B0666ABEBD} <, N/A>
[QQBrowserHelper
Object Class]
{54EBD53A-9BC1-480B-966A-843A333CA162} <d:\Program Files\Tencent\QQ\QQIEHelper.dll, 深圳市腾讯计算机系统有限公司>
[DragSearch BHO]
{62EED7C6-9F02-42f9-B634-98E2899E147B} <, N/A>
[stdup]
{6A512BF7-EC78-4e8d-9841-6C02E8FA9838} <, N/A>
[FavHook Class]
{CD8BFE70-5809-4C73-9EEE-E5672C2B79D7} <C:\Program Files\Deepdo\DeepdoBar\Favorite\FavBlock.dll, Deepdo.com, Inc.>
[Letscool System Helper]
{F0C15012-7DBD-4068-95A2-0A82DB03AC35} <C:\WINNT\system32\CoolBho.dll, LETSCOOL Network Technology>
[BHelper Class]
{F2E37336-BFDB-409B-8D0E-6F013C438B20} <, N/A>
[@shdoclc.dll,-866]
{c95fe080-8f5d-11d2-a20b-00aa003c157a} <, N/A>
[QQ]
{c95fe080-8f5d-11d2-a20b-00aa003c157b} <d:\Program Files\Tencent\QQ\QQ.EXE, TENCENT>
[QQIEFloatBarCfgCmd Class]
{DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} <d:\Program Files\Tencent\QQ\QQIEHelper.dll, 深圳市腾讯计算机系统有限公司>
[@msdxmLC.dll,-1@2052,电台(&R)]
{8E718888-423F-11D2-876E-00A0C9082467} <C:\WINNT\System32\msdxm.ocx, Microsoft Corporation>
[雅虎助手]
{406F94F0-504F-4a40-8DFD-58B0666ABEBD} <, N/A>
[全能助手广告拦截专家]
{ED51E9A3-16C5-4236-99E0-9F093B021433} <C:\Program Files\TweakAssist\AssistIEBar.dll, 全能助手工作室>
[天下搜索]
{56A7DC70-E102-4408-A34A-AE06FEF01586} <, N/A>
[Shockwave Flash
Object]
{D27CDB6E-AE6D-11CF-96B8-444553540000} <C:\WINNT\system32\Macromed\Flash\Flash8b.ocx, Macromedia, Inc.>
[上传到QQ网络硬盘]
<D:\Program Files\Tencent\QQ\AddToNetDisk.htm, N/A>
[添加到QQ自定义面板]
<D:\Program Files\Tencent\QQ\AddPanel.htm, N/A>
[添加到QQ表情]
<D:\Program Files\Tencent\QQ\AddEmotion.htm, N/A>
[添加到广告杀手]
<C:\Program Files\TweakAssist\AdKiller.htm, N/A>
[添加到雅虎订阅(&Y)]
<, N/A>
[用QQ彩信发送该图片]
<D:\Program Files\Tencent\QQ\SendMMS.htm, N/A>
==================================
正在运行的进程
[PID: 112][\SystemRoot\System32\smss.exe] <Microsoft Corporation><5.00.2195.6601>
[PID: 140][\??\C:\WINNT\system32\csrss.exe] <Microsoft Corporation><5.00.2195.6601>
[PID: 136][\??\C:\WINNT\system32\winlogon.exe] <Microsoft Corporation><5.00.2195.6970>
[PID: 188][C:\WINNT\system32\services.exe] <Microsoft Corporation><5.00.2195.6700>
[C:\WINNT\system32\dmserver.dll] <VERITAS Software Corp.><2195.6605.297.3>
[PID: 200][C:\WINNT\system32\lsass.exe] <Microsoft Corporation><5.00.2195.6902>
[PID: 340][C:\WINNT\system32\svchost.exe] <Microsoft Corporation><5.00.2134.1>
[C:\WINNT\system32\cn_spi32.dll] <N/A><N/A>
[PID: 380][C:\WINNT\System32\WBEM\WinMgmt.exe] <Microsoft Corporation><1.50.1085.0100>
[C:\Documents and Settings\Administrator\桌面\新建文件夹\SREng.com] <Smallfrogs Studio><2.0.21.505>
[C:\WINNT\system32\cn_spi32.dll] <N/A><N/A>
[PID: 408][C:\WINNT\explorer.exe] <Microsoft Corporation><5.00.3700.6690>
[C:\WINNT\system32\cn_spi32.dll] <N/A><N/A>
==================================
文件关联
.TXT OK. [%SystemRoot%\system32\NOTEPAD.EXE %1]
.EXE OK. ["%1" %*]
.COM OK. ["%1" %*]
.PIF OK. ["%1" %*]
.REG OK. [regedit.exe "%1"]
.BAT OK. ["%1" %*]
.SCR OK. ["%1" /S]
.CHM OK. ["C:\WINNT\hh.exe" %1]
.HLP OK. [%SystemRoot%\system32\winhlp32.exe %1]
.INI OK. [%SystemRoot%\system32\NOTEPAD.EXE %1]
.INF OK. [%SystemRoot%\system32\NOTEPAD.EXE %1]
.VBS OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.JS OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.LNK OK. [{00021401-0000-0000-C000-000000000046}]
==================================
Winsock 提供者
==================================
