Win2000命令全集
- accwiz.exe: Accessibility Wizard for walking you through setting up your machine for your mobility needs. 辅助工具向导
- acsetups.exe: ACS setup DCOM server executable
- actmovie.exe: Direct Show setup tool 直接显示安装工具
- append.exe: Allows programs to open data in specified directories as if they were in the current directory. 允许程序打开制定目录中的数据
- arp.exe: NETWORK Display and modify IP - Hardware addresses 显示和更改计算机的IP与硬件物理地址的对应列表
- at.exe: AT is a scheduling utility also included with UNIX 计划运行任务
- atmadm.exe: Displays statistics for ATM call manager. ATM调用管理器统计
- attrib.exe: Display and modify attributes for files and folders 显示和更改文件和文件夹属性
- autochk.exe: Used to check and repair Windows File Systems 检测修复文件系统
- autoconv.exe: Automates the file system conversion during reboots 在启动过程中自动转化系统
- autofmt.exe: Automates the file format process during reboots 在启动过程中格式化进程
- autolfn.exe: Used for formatting long file names 使用长文件*格式
- bootok.exe: Boot acceptance application for registry
- bootvrfy.exe: Bootvrfy.exe, a program included in Windows 2000 that notifies the system that startup was successful. Bootvrfy.exe can be run on a local or remote computer. 通报启动成功
cacls.exe: Displays or modifies access control lists (ACLs) of files. 显示和编辑ACL - calc.exe: Windows Calculators 计算器
- cdplayer.exe: Windows CD Player CD播放器
- change.exe: Change { User | Port | Logon } 与终端服务器相关的查询
- charmap.exe: Character Map 字符映射表
- chglogon.exe: Same as using "Change Logon" 启动或停用会话记录
- chgport.exe: Same as using "Change Port" 改变端口（终端服务）
- chgusr.exe: Same as using "Change User" 改变用户（终端服务）
- chkdsk.exe: Check the hard disk for errors similar to Scandisk 3 Stages must specify a Drive Letter 磁盘检测程序
- chkntfs.exe: Same as using chkdsk but for NTFS NTFS磁盘检测程序
- cidaemon.exe: Component of Ci Filer Service 组成Ci文档服务
- cipher.exe: Displays or alters the encryption of directories [files] on NTFS partitions. 在NTFS上显示或改变加密的文件或目录
- cisvc.exe: Content Index -- It's the content indexing service for I 索引内容
- ckcnv.exe: Cookie Convertor 变换Cookie
- cleanmgr.exe: Disk Cleanup, popular with Windows 98 磁盘清理
- cliconfg.exe: SQL Server Client Network Utility SQL客户网络工具
- clipbrd.exe: Clipboard viewer for Local will allow you to connect to other clipboards 剪贴簿查看器
- clipsrv.exe: Start the clipboard Server 运行Clipboard服务
- clspack.exe: CLSPACK used to create a file listing of system packages 建立系统文件列表清单
- cluster.exe: Display a cluster in a domain 显示域的集群
- _cmd_.exe: Famous command prompt 没什么好说的！
- cmdl32.exe: Connection Manager Auto-Download 自动下载连接管理
- cmmgr32.exe: Connection Manager 连接管理器
- cmmon32.exe: Connection Manager Monitor 连接管理器监视
- cmstp.exe: Connection Manager Profile Manager 连接管理器配置文件安装程序
- comclust.exe: about cluster server 集群
- comp.exe: ComClust Add, Remove, or Join a cluster. 比较两个文件和文件集的内容＊
- compact.exe: Displays or alters the compression of files on NTFS partitions. 显示或改变NTFS分区上文件的压缩状态
- conime.exe: Console IME IME控制台
- control.exe: Starts the control panel 控制面板
- convert.exe: Convert File System to NTFS 转换文件系统到NTFS
- convlog.exe: Converts MS IIS log files 转换IIS日志文件格式到NCSA格式
- cprofile.exe: Copy profiles 转换显示模式
- cscript.exe: MS Windows Scripts Host Version 5.1 较本宿主版本
- csrss.exe: Client Server Runtime Process 客户服务器Runtime进程
- csvde.exe: Comma Separated Variable Import/Export Utility 日至格式转换程序
- dbgtrace.exe: 和Terminal Server相关
- dcomcnfg.exe: Display the current DCOM configuration. DCOM配置属性
- dcphelp.exe: ?
- dcpromo.exe: Promote a domain controller to ADSI AD安装向导
- ddeshare.exe: Display DDE shares on local or remote computer DDE共享
- ddmprxy.exe:
- debug.exe: Runs Debug, a program testing and editing tool. 就是DEBUG啦！
- dfrgfat.exe: Defrag FAT file system FAT分区磁盘碎片整理程序
- dfrgntfs.exe: Defrag NTFS file system NTFS分区磁盘碎片整理程序
- dfs_cmd_.exe: configures a Dfs tree 配置*个DFS树
- dfsinit.exe: Distributed File System Initialization 分布式文件系统初始化
- dfssvc.exe: Distributed File System Server 分布式文件系统服务器
- diantz.exe: MS Cabinet Maker 制作CAB文件
- diskperf.exe: Starts physical Disk Performance counters 磁盘性能计数器
- dllhost.exe: dllhost is used on all versions of Windows 2000. dllhost is the hedost process for all COM+ applications. 所有COM+应用软件的主进程
- dllhst3g.exe:
- dmadmin.exe: Disk Manager Service 磁盘管理服务
- dmremote.exe: Part of disk management 磁盘管理服务的*部分
- dns.exe: DNS Applications DNS
- doskey.exe: recalls Windows command lines and creates macros 命令行创建宏
- dosx.exe: DOS Extender DOS扩展
- dplaysvr.exe: Direct Play Helper 直接运行帮助
- drwatson.exe: Dr Watson for 2000 Fault Detector 华生医生错误检测
- drwtsn32.exe: Dr Watson for 2000 viewer and configuration manager 华生医生显示和配置管理
- dtcsetup.exe: Installs MDTC
- dvdplay.exe: Windows 2000 DVD player DVD播放
- dxdiag.exe: Direct-X Diagnostics Direct-X诊断工具
- edlin.exe: line-oriented text editor. 命令行的文本编辑器（历史悠久啊！）
edlin.exe: line-oriented text editor. 命令行的文本编辑器（历史悠久啊！） - esentutl.exe: MS Database Utility MS数据库工具
- eudcedit.exe: Private character editor Ture Type造字程序
- eventvwr.exe: Windows 2000 Event Viewer 事件查看器
- evnt_cmd_.exe: Event to trap translator; Configuration tool
- evntwin.exe: Event to trap translator setup
- exe2bin.exe: Converts EXE to binary format 转换EXE文件到二进制
- expand.exe: Expand Files that have been compressed 解压缩
- extrac32.exe: CAB File extraction utility 解CAB工具
- fastopen.exe: Fastopen tracks the location of files on a hard disk and stores the information in memory for fast access. 快速访问在内存中的硬盘文件
- faxcover.exe: Fax Cover page editor 传真封面编辑
- faxqueue.exe: Display Fax Queue 显示传真队列
- faxsend.exe: Fax Wizard for sending faxes 发送传真向导
- faxsvc.exe: Starts fax server 启动传真服务
- fc.exe: Compares two files or sets of files and their differences 比较两个文件的不同
- find.exe: Searches for a text string in file or files 查找文件中的文本行
- findstr.exe: Searches for strings in files 查找文件中的行
- finger.exe: Fingers a user and displays statistics on that user Finger*个用户并显示出统计结果
- fixmapi.exe: Fix mapi files 修复MAPI文件
- flattemp.exe: Enable or disable temporally directories 允许或者禁用临时文件目录
- fontview.exe: Display fonts in a font file 显示字体文件中的字体
- forcedos.exe: Forces a file to start in dos mode. 强制文件在DOS模式下运行
- freecell.exe: Popular Windows Game 空当接龙
- ftp.exe: File Transfer Protocol used to transfer files over a network connection 就是FTP了
- gdi.exe: Graphic Device Interface 图形界面驱动
- grovel.exe:
- grpconv.exe: Program Manager Group Convertor 转换程序管理员组
- help.exe: displays help for Windows 2000 commands 显示帮助
- hostname.exe: Display hostname for machine. 显示机器的Hostname
- ie4uinit.exe: IE5 User Install tool IE5用户安装工具
- ieshwiz.exe: Customize folder wizard 自定义文件夹向导
- iexpress.exe: Create and setup packages for install 穿件安装包
- iisreset.exe: Restart IIS Admin Service 重启IIS服务
- internat.exe: Keyboard Language Indicator Applet 键盘语言指示器
- ipconfig.exe: Windows 2000 IP configuration. 察看IP配置
- ipsecmon.exe: IP Security Monitor IP安全监视器
- ipxroute.exe: IPX Routing and Source Routing Control Program IPX路由和源路由控制程序
- irftp.exe: Setup FTP for wireless communication 无线连接
- ismserv.exe: Intersite messaging Service 安装或者删除Service Control Manager中的服务
- jdbgmgr.exe: Microsoft debugger for java 4 Java4的调试器
- jetconv.exe: Convert a Jet Engine Database 转换Jet Engine数据库
- jetpack.exe: Compact Jet Database. 压缩Jet数据库
- jview.exe: Command-line loader for Java Java的命令行装载者
- krnl386.exe: Core Component for Windows 2000 2000的核心组件
- label.exe: Change label for drives 改变驱动器的卷标
- lcwiz.exe: License Compliance Wizard for local or remote systems. 许可证符合向导
- ldifde.exe: LDIF cmd line manager LDIF目录交换命令行管理
- licmgr.exe: Terminal Server License Manager 终端服务许可协议管理
- lights.exe: display connection status lights 显示连接状况
- llsmgr.exe: Windows 2000 License Manager 2000许可协议管理
- llssrv.exe: Start the license Server 启动许可协议服务器
- lnkstub.exe:
- locator.exe: RPC Locator 远程定位
- lodctr.exe: Load perfmon counters 调用性能计数
- logoff.exe: Log current user off. 注销用户
- lpq.exe: Displays status of a remote LPD queue 显示远端的LPD打印队列的状态，显示被送到基于Unix的服务器的打印任务
- lpr.exe: Send a print job to a network printer. 重定向打印任务到网络中的打印机。通常用于Unix客户打印机将打印任务发送给连接了打印设备的NT的打印机服务器。
- lsass.exe: LSA Executable and Server DLL 运行LSA和Server的DLL
- lserver.exe: Specifies the new DNS domain for the default server 指定默认Server新的DNS域
- macfile.exe: Used for managing MACFILES 管理MACFILES
- magnify.exe: Used to magnify the current screen 放大镜
- makecab.exe: MS Cabinet Maker 制作CAB文件
- mdm.exe: Machine Debug Manager 机器调试管理
- mem.exe: Display current Memory stats 显示内存状态
- migpwd.exe: Migrate passwords. 迁移密码
- mmc.exe: Microsoft Management Console 控制台
- mnmsrvc.exe: Netmeeting Remote Desktop Sharing NetMeeting远程桌面共享
- mobsync.exe: Manage Synchronization. 同步目录管理器
- mountvol.exe: Creates, deletes, or lists a volume mount point. 创建、删除或列出卷的装入点。
- mplay32.exe: MS Media Player 媒体播放器
- mpnotify.exe: Multiple Provider Notification application 多提供者通知应用程序
- mq1sync.exe:
- mqbkup.exe: MS Message Queue Backup and Restore Utility 信息队列备份和恢复工具
- mqexchng.exe: MSMQ Exchange Connector Setup 信息队列交换连接设置
- mqmig.exe: MSMQ Migration Utility 信息队列迁移工具
- mqsvc.exe: ?
- mrinfo.exe: Multicast routing using SNMP 使用SNMP多点传送路由
- mscdexnt.exe: Installs MSCD (MS CD Extensions) 安装MSCD
- msdtc.exe: Dynamic Transaction Controller Console 动态事务处理控制台
- msg.exe: Send a message to a user local or remote. 发送消息到本地或远程客户
- mshta.exe: HTML Application HOST HTML应用程序主机
- msiexec.exe: Starts Windows Installer Program 开始Windows安装程序
- mspaint.exe: Microsoft Paint 画板
- msswchx.exe:
- mstask.exe: Task Schedule Program 任务计划表程序
- mstinit.exe: Task scheduler setup 任务计划表安装
- narrator.exe: Program will allow you to have a narrator for reading. Microsoft讲述人
- nbtstat.exe: Displays protocol stats and current TCP/IP connections using NBT 使用 NBT（TCP/IP 上的 NetBIOS）显示协议统计和当前 TCP/IP 连接。
- nddeapir.exe: NDDE API Server side NDDE API服务器端
- net.exe: Net Utility 详细用法看/？
- net1.exe: Net Utility updated version from MS Net的升*版
- netdde.exe: Network DDE will install itself into the background 安装自己到后台
- netsh.exe: Creates a shell for network information 用于配置和监控 Windows 2000 命令行脚本接口。
- netstat.exe: Displays current connections. 显示协议统计和当前的 TCP/IP 网络连接。
- nlsfunc.exe: Loads country-specific information 加载特定国家（地区）的信息。Windows 2000 和 MS-DOS 子系统不使用该命令。接受该命令只是为了与 MS-DOS 文件兼容。
- notepad.exe: Opens Windows 2000 Notepad 记事本
- nslookup.exe: Displays information for DNS 该诊断工具显示来自域*系统 (DNS) *称服务器的信息。
- ntbackup.exe: Opens the NT Backup Utility 备份和故障修复工具
- ntbooks.exe: Starts Windows Help Utility 帮助
- ntdsutil.exe: Performs DB maintenance of the ADSI 完成ADSI的DB的维护
- ntfrs.exe: NT File Replication Service NT文件复制服务
- ntfrsupg.exe:
- ntkrnlpa.exe: Kernel patch 核心补丁
- ntoskrnl.exe: Core NT Kernel KT的核心
- ntsd.exe:
- ntvdm.exe: Simulates a 16-bit Windows environment 模拟16位Windows环境
- nw16.exe: Netware Redirector NetWare转向器
- nwscript.exe: runs netware scripts 运行Netware脚本
- odbcad32.exe: ODBC 32-bit Administrator 32位ODBC管理
- odbcconf.exe: Configure ODBC driver's and data source's from command line 命令行配置ODBC驱动和数据源
- os2.exe: An OS/2 Warp Server (os2 /o) OS/2
- os2srv.exe: An OS/2 Warp Server OS/2
- os2ss.exe: An OS/2 Warp Server OS/2
- osk.exe: On Screen Keyboard 屏幕键盘
- packager.exe: Windows 2000 Packager Manager 对象包装程序
- pathping.exe: Combination of Ping and Tracert 包含Ping和Tracert的程序
- pax.exe: is a POSIX program and path names used as arguments must be specified in POSIX format. Use "//C/Users/Default" instead of "C:\USERS\DEFAULT." 启动便携式存档互换 (Pax) 实用程序
- pentnt.exe: Used to check the Pentium for the floating point division error. 检查Pentium的浮点错误
- perfmon.exe: Starts Windows Performance Monitor 性能监视器
- ping.exe: Packet Internet Groper 验证与远程计算机的连接
- posix.exe: Used for backward compatibility with Unix 用于兼容Unix
- print.exe: Cmd line used to print files 打印文本文件或显示打印队列的内容。
- progman.exe: Program manager 程序管理器
- proquota.exe: Profile quota program
- psxss.exe: POSIX Subsystem Application Posix子系统应用程序
- qappsrv.exe: Displays the available application terminal servers on the network
在网络上显示终端服务器可用的程序 - qprocess.exe: Display information about processes local or remote 在本地或远程显示进程的信息（需终端服务）
- query.exe: Query TERMSERVER user process and sessions 查询进程和对话
- quser.exe: Display information about a user logged on 显示用户登陆的信息（需终端服务）
- qwinsta.exe: Display information about Terminal Sessions. 显示终端服务的信息
- rasadmin.exe: Start the remote access admin service 启动远程访问服务
- rasautou.exe: Creates a RAS connection 建立*个RAS连接
- rasdial.exe: Dial a connection 拨号连接
- rasphone.exe: Starts a RAS connection 运行RAS连接
- rcp.exe: Copies a file from and to a RCP service. 在 Windows 2000 计算机和运行远程外壳端口监控程序 rshd 的系统之间复制文件
- rdpclip.exe: RdpClip allows you to copy and paste files between a terminal session and client console session. 再终端和本地复制和粘贴文件
- recover.exe: Recovers readable information from a bad or defective disk 从坏的或有缺陷的磁盘中恢复可读取的信息。
- redir.exe: Starts the redirector service 运行重定向服务
- regedt32.exe: 32-bit register service 32位注册服务
- regini.exe: modify registry permissions from within a script 用脚本修改注册许可
- register.exe: Register a program so it can have special execution characteristics. 注册包含特殊运行字符的程序
- regsvc.exe:
- regsvr32.exe: Registers and unregister's dll's. As to how and where it register's them I dont know. 注册和反注册DLL
- regtrace.exe: Options to tune debug options for applications failing to dump trace statements
Trace 设置
regwiz.exe: Registration Wizard 注册向导 - remrras.exe:
- replace.exe: Replace files 用源目录中的同*文件替换目标目录中的文件。
- reset.exe: Reset an active section 重置活动部分
- rexec.exe: Runs commands on remote hosts running the REXEC service. 在运行 REXEC 服务的远程计算机上运行命令。rexec 命令在执行指定命令前，验证远程计算机上的用户*，只有安装了 TCP/IP 协议后才可以使用该命令。
- risetup.exe: Starts the Remote Installation Service Wizard. 运行远程安装向导服务
- route.exe: display or edit the current routing tables. 控制网络路由表
- routemon.exe: no longer supported 不再支持了！
- router.exe: Router software that runs either on a dedicated DOS or on an OS/2 system. Route软件在 DOS或者是OS/2系统
- rsh.exe: Runs commands on remote hosts running the RSH service 在运行 RSH 服务的远程计算机上运行命令
- rsm.exe: Mounts and configures remote system media 配置远程系统媒体
- rsnotify.exe: Remote storage notification recall 远程存储通知回显
- rsvp.exe: Resource reservation protocol 源预约协议
- runas.exe: RUN a program as another user 允许用户用其他权限运行指定的工具和程序
- rundll32.exe: Launches a 32-bit dll program 启动32位DLL程序
- runonce.exe: Causes a program to run during startup 运行程序再开始菜单中
- rwinsta.exe: Reset the session subsystem hardware and software to known initial values 重置会话子系统硬件和软件到*初的值
- savedump.exe: Does not write to e:\winnt\user.dmp 不写入User.dmp中
- scardsvr.exe: Smart Card resource management server 子能卡资源管理服务器
- schupgr.exe: It will read the schema update files (.ldf files) and upgrade the schema. (part of ADSI) 读取计划更新文件和更新计划
- secedit.exe: Starts Security Editor help 自动安全性配置管理
- services.exe: Controls all the services 控制所有服务
- sethc.exe: Set High Contrast - changes colours and display mode Logoff to set it back to normal 设置高对比
- setreg.exe: Shows the Software Publishing State Key Values 显示软件发布的国家语言
- setup.exe: GUI box prompts you to goto control panel to configure system components 安装程序（转到控制面板）
- setver.exe: Set Version for Files 设置 MS-DOS 子系统向程序报告的 MS-DOS 版本号
- sfc.exe: System File Checker test and check system files for integrity 系统文件检查
- sfmprint.exe: Print Services for Macintosh 打印Macintosh服务
- sfmpsexe.exe:
- sfmsvc.exe:
- shadow.exe: Monitor another Terminal Services session. 监控另外*台中端服务器会话
- share.exe: Windows 2000 和 MS-DOS 子系统不使用该命令。接受该命令只是为了与 MS-DOS 文件兼容
- shmgrate.exe:
- shrpubw.exe: Create and Share folders 建立和共享文件夹
- sigverif.exe: File Signature Verification 文件签*验证
- skeys.exe: Serial Keys utility 序列号制作工具
- smlogsvc.exe: Performance Logs and Alerts 性能日志和警报
- smss.exe:
- sndrec32.exe: starts the Windows Sound Recorder 录音机
- sndvol32.exe: Display the current volume information 显示声音控制信息
- snmp.exe: Simple Network Management Protocol used for Network Mangement 简单网络管理协议
- snmptrap.exe: Utility used with SNMP SNMP工具
- sol.exe: Windows Solitaire Game 纸牌
- sort.exe: Compares files and Folders 读取输入、排序数据并将结果写到屏幕、文件和其他设备上
- SPOOLSV.EXE: Part of the spooler service for printing 打印池服务的*部分
- sprestrt.exe:
- srvmgr.exe: Starts the Windows Server Manager 服务器管理器
- stimon.exe: WDM StillImage-: Monitor
- stisvc.exe: WDM StillImage-: Service
- subst.exe: Associates a path with a drive letter 将路径与驱动器盘符关联
- svchost.exe: Svchost.exe is a generic host process name for services that are run from dynamic-link libraries (DLLs). DLL得主进程
- syncapp.exe: Creates Windows Briefcase. 创建Windows文件包
- sysedit.exe: Opens Editor for 4 system files 系统配置编辑器
- syskey.exe: Encrypt and secure system database NT账号数据库按群工具
- sysocmgr.exe: Windows 2000 Setup 2000安装程序
- systray.exe: Starts the systray in the lower right corner. 在低权限运行systray
- taskman.exe: Task Manager 任务管理器
- taskmgr.exe: Starts the Windows 2000 Task Manager 任务管理器
- tcmsetup.exe: telephony client wizard 电话服务客户安装
- tcpsvcs.exe: TCP Services TCP服务
- .exe: Telnet Utility used to connect to Telnet Server
- termsrv.exe: Terminal Server 终端服务
- tftp.exe: Trivial FTP 将文件传输到正在运行 TFTP 服务的远程计算机或从正在运行 TFTP 服务的远程计算机传输文件
- tftpd.exe: Trivial FTP Daemon
- themes.exe: Change Windows Themes 桌面主题
- tlntadmn.exe: Telnet Server Administrator Telnet服务管理
- tlntsess.exe: Display the current Telnet Sessions 显示目前的Telnet会话
- tlntsvr.exe: Start the Telnet Server 开始Telnet服务
- tracert.exe: Trace a route to display paths 该诊断实用程序将包含不同生存时间 (TTL) 值的 Internet 控制消息协议 (ICMP) 回显数据包发送到目标，以决定到达目标采用的路由
- tsadmin.exe: Terminal Server Administrator 终端服务管理器
- tscon.exe: Attaches a user session to a terminal session. 粘贴用户会话到终端对话
- tsdiscon.exe: Disconnect a user from a terminal session 断开终端服务的用户
- tskill.exe: Kill a Terminal server process 杀掉终端服务
- tsprof.exe: Used with Terminal Server to query results. 用终端服务得出查询结果
- tsshutdn.exe: Shutdown the system 关闭系统
- unlodctr.exe: Part of performance monitoring 性能监视器的*部分
- upg351db.exe: Upgrade a jet database 升*Jet数据库
- ups.exe: UPS service UPS服务
- user.exe: Core Windows Service Windows核心服务
- userinit.exe: Part of the winlogon process Winlogon进程的*部分
- usrmgr.exe: Start the windows user manager for domains 域用户管理器
- utilman.exe: This tool enables an administrator to designate which computers automatically open accessibility tools when Windows 2000 starts. 指定2000启动时自动打开那台机器
- verifier.exe: Driver Verifier Manager Driver Verifier Manager
- vwipxspx.exe: Loads IPX/SPX VDM 调用IPX/SPX VDM
- w32tm.exe: Windows Time Server 时间服务器
- wextract.exe: Used to extract windows files 解压缩Windows文件
- winchat.exe: Opens Windows Chat 打开Windows聊天
- winhlp32.exe: Starts the Windows Help System 运行帮助系统
- winlogon.exe: Used as part of the logon process. Logon进程的*部分
- winmine.exe: windows Game 挖地雷
- winmsd.exe: Windows Diagnostic utility 系统信息
- wins.exe: Wins Service Wins服务
- winspool.exe: Print Routing 打印路由
- winver.exe: Displays the current version of Windows 显示Windows版本
- wizmgr.exe: Starts Windows Administration Wizards Windows管理向导
- wjview.exe: Command line loader for Java 命令行调用Java
- wowdeb.exe: . For starters, the 32-bit APIs require that the WOWDEB.EXE task runs in the target debugee's VM 启动时，32位API需要
- wowexec.exe: For running Windows over Windows Applications 在Windows应用程序上运行Windows
- wpnpinst.exe: ?
- write.exe: Starts MS Write Program 写字板
- wscript.exe: Windows Scripting Utility 脚本工具
- wupdmgr.exe: Starts the Windows update Wizard (Internet) 运行Windows升*向导
- xcopy.exe: Used to copy directories 复制文件和目录，包括子目录
注：还有*些内部命令，参见2000的帮助文件.