以下是用你说的方法弄出来的，这些东西你看下，哪个不对，该怎么样解决
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
+ assistse File not found: C:\PROGRA~1\3721\assistse.exe
+ CnsMin 3721 北京三七二一科技有限公司 c:\winnt\downloaded program files\cnsmin.dll
+ NeroFilterCheck NeroCheck Ahead Software Gmbh c:\winnt\system32\nerocheck.exe
+ NvCplDaemon NVIDIA Display Properties Extension NVIDIA Corporation c:\winnt\system32\nvcpl.dll
+ NvMediaCenter NVIDIA Media Center Library NVIDIA Corporation c:\winnt\system32\nvmctray.dll
+ nwiz NVIDIA nView Wizard, Version 56.72 NVIDIA Corporation c:\winnt\system32\nwiz.exe
+ RavMon RavMon Rising realtime monitor Beijing Rising Technology Co., Ltd. f:\rising\rav\ravmon.exe
+ RavTimer RavTimer Beijing Rising Technology Co., Ltd. f:\rising\rav\ravtimer.exe
+ yassistse AssistSetting Yahoo! c:\program files\yahoo!\assistant\yassistse.exe
+ YLive.exe YLive c:\program files\yahoo!\assistant\ylive.exe
HKLM\System\CurrentControlSet\Services
+ npkcsvc nProtect KeyCrypt Service INCA Internet Co., Ltd. c:\winnt\system32\npkcsvc.exe
+ NVSvc Provides system and desktop level support to the NVIDIA display driver NVIDIA Corporation c:\winnt\system32\nvsvc32.exe
+ PPPoESvc ReachStone Xcess PPPoE Client Service(Personal) ReachStone Technologies, Inc c:\program files\asiainfo\山东通信宽带e线拨号软件\xcess\pppoesvc.exe
+ RsCCenter CCenter rising f:\rising\rav\ccenter.exe
+ RSPower c:\program files\asiainfo\山东通信宽带e线拨号软件\xcess\rspower.exe
+ RsRavMon RavMon Beijing Rising Technology Co., Ltd. f:\rising\rav\ravmond.exe
+ SoundMAX Agent Service (default) SoundMAX service agent component Analog Devices, Inc. c:\program files\analog devices\soundmax\smagent.exe
+ Universal Disk Manager 监测和监视新的通用磁盘驱动器并向逻辑磁盘管理器管理服务发送卷的信息以便配置。如果此服务被终止，动态磁盘状态和配置信息会过时。如果此服务被禁用，任何依赖它的服务将无法启动。 c:\program files\common files\sandf\diskman.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks
+ cnshook.dll 3721 CNS Module 北京三七二一科技有限公司 c:\winnt\downloaded program files\cnshook.dll
HKLM\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved
+ RISING Rising Shell Ext Module Beijing Rising Technology Co., Ltd. c:\winnt\system32\ravext.dll
+ 粉碎文件 Wiper 动态链接库 c:\program files\yahoo!\assistant\assist\ywiper.dll
HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper
Objects
+ AntiFish Class yangling.dll Yahoo. c:\program files\yahoo!\assistant\assist\yangling.dll
+ CnsHook Class 3721 CNS Module 北京三七二一科技有限公司 c:\winnt\downloaded program files\cnshook.dll
+ ThunderIEHelper Class xunleibho BHO c:\winnt\system32\xunleibho_v8.dll
+ 雅虎助手 ToolBar Yahoo! c:\program files\yahoo!\assistant\assist\yasbar.dll
HKLM\Software\Microsoft\Internet Explorer\Toolbar
+ 雅虎助手 ToolBar Yahoo! c:\program files\yahoo!\assistant\assist\yasbar.dll
HKLM\Software\Microsoft\Internet Explorer\Extensions
+ Yahoo 1G电邮 File not found: http://cn.mail.yahoo.com/promo/rd1
+ 清理上网记录 File not found: http://assistant.3721.com/clean1.htm?fb=Cns
+ 情景聊天 File not found: http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/
+ 上网助手 File not found: http://assistant.3721.com/index.htm?fb=Cns
+ 手机短信 File not found: http://sms.3721.com/ie/index.htm?pid=209660_1006
+ 修复浏览器 File not found: http://assistant.3721.com/security1.htm?fb=Cns
+ 寻宝乐趣多 File not found: http://hot.3721.com/rd/shop_btn.htm
