RichEdit是开发中经常使用到的控件，其版本自1.0起，历经好几年，好几次的更新，在此引用一篇介绍RichEdit版本的博文（http://blogs.msdn.com/b/murrays/archive/2006/10/14/richedit-versions.aspx），留个爪印记录下，以备查看。
| Version | Ships ('ed) with | dll name |
| 1.0 | Windows 95/98/ME/NT | riched32.dll |
| 1.0 | Exchange 4.0 for Windows 3.1/WFW | richedit.dll |
| 2.0 | Office 97, Windows NT/98 | riched20.dll |
| 2.1 | BiDi Office 97 | riched20.dll |
| 2.5 | Windows CE, Pocket Word | riched20.dll |
| 3.0 | Office 2000, Windows ME/2000/XP | riched20.dll |
| 1.0 emulator | Office 2000, Windows 2000/XP/Vista | riched32.dll |
| 3.1 | Windows Server 2003, Vista | riched20.dll |
| 3.5 | Windows CE, eBooks | ebriched.dll |
| 4.0 | Office XP | riched20.dll |
| 4.1 | Windows XP SP1, Tablet, Vista | msftedit.dll |
| 5.0 | Office 2003 | riched20.dll |
| 5.1 | Windows CE, Pocket Word | riched20.dll |
| 6.0 | Office 2007, Encarta Math Calculator | riched20.dll |
以下使用翻译工具翻译，外加自己修改一些，翻译成中文，便于查看，但翻译不一定是原意，还是看英语原版。
中文介绍
RichEdit 1.0 功能
基本非Unicode编辑、 剪切/复制/粘贴文件流
字符/段落格式属性的基本集
基于消息的接口加OLE接口：IRichEditOle和IRichEditOleCallback
垂直文本和输入法支持 （仅适用于FE生成）。
所见即所得的编辑使用打印机标准
不同版本不同的脚本
常用控件通知再加上一些新的
纯文本和rtf格式文件
为Windows画笔的使用启用笔和理解的手势
RichEdit 2.0 添加
Unicode内部+能够读写使用代码页
国际线断算法
向上/向下查找。麦哲伦鼠标支持。
多级撤消
双向（2.1版）和FE支持包括水平的2/3输入法，双字体、键盘链接、智能字体应用
自动超链接识别。Word用户界面
简单的/丰富的、 单行/多行、 可扩展的架构
密码和加速器控制选项
无窗口接口（ITextHost/ITextServices)
更好地显示（混合的字体使用离屏位图）、系统选择颜色、透明度的支持
TOM（文本对象模型）双重接口
字符格式增加包括背景颜色，区域设置 ID，下划线类型，上标/下标。
段落格式设置增加包括前/后的间距、 行间距。
来回所有Word格式字体/段落属性对话框
大量的代码稳定，测试，性能提高
RichEdit 2.5 添加
Windows CE的第一个版本。用于在便携式Word
大纲视图、 普通和标题样式
Rtf格式添加
次要的UI改进
只有西方语言
RichEdit 3.0 添加
用于模拟RichEdit 1.0
缩放
斜体插入符号/光标。URL手形光标
段落编号（字母，数字，罗马)
简单的表（在单元格不换行）
更多的强调类型、强调掩饰、 隐藏文本
更多的Word默认热键，例如，accent dead keys、大纲视图、编号
智能引号（仅英文）、软连字符
使用Office的LineServices组件来中断/显示行。用于复杂脚本和选择像中心、右、十进制的选项卡，完全对齐的文本
复杂脚本支持双向、印度语和泰语从LineServices和Uniscribe组件的帮助
基于字符集，作为写系统 ID 的字体绑定
代码页特定流进/出
UTF-8 RTF格式。优先用于剪切/复制/粘贴。可以进行流式处理输入/输出。
Office 9输入法支持(MSIME98)包括再转换、文档 feed、鼠标操作和插入符号位置功能
AIMM 组件输入法支持非FE系统。
增加冻结和撤消/重做
字体递增/递减功能
系统编辑控件、列表框和组合框控件
Alt + x 输入法
用来模拟 RichEdit 1.0
RichEdit 3.5 添加
第二个Windows CE发布。使用在电子书上
屏幕大小分页
对象的文字环绕刷新左/右
自定义ClearType支持
加强东亚字体
RichEdit 4.0 添加
多级表
自动更正
改进的自动超链接检测
友好名称的超链接
根据书写系统的字体绑定（字符集泛化）
印度支持
垂直文本
支持最新的输入法
语音和手写输入（Windows 文本服务框架）
更标准的热键
许多安全修补程序 (3.0版本也有)
RichEdit 5.0 添加
多重选择，智能拖放
更好地嵌套的表，横向合并的单元格
更好的字体绑定/国际支持
更多的强调样式、small cap和阴影仿真
二进制文件格式："解析 XML"
部分XHTML读写器
子像素ClearType支持
更好的RTF格式处理，例如，多层次的列表
URL超链接提示框
许多bug/次要-请求修复
经过改进的墨迹，特别是OneNote支持
先进的东亚字体
最初的PTS集成，包括对象紧密环绕
数学、拼音、分行缩排、tatenakayoko的基础设施
文本跟踪器和blobs
RichEdit 5.1
第三个Windows CE版本。用于在便携式Word
不同的用户界面和RTF增强功能
RichEdit 6.0 添加
高质量编辑和显示的数学
公式自动集结
创建和支持数学线性格式
更多列表编号选项
简单的"visi"模式
URL的改进
多层：高性能剪切/复制/粘贴、丰富暂存器，WP基础设施
文本对象模型2
显示增强功能，例如，word下划线，水平缩放
表用户界面添加，例如，调整列的大小
艺术字/PowerPoint的增强功能
重叠线、首字下沉和其他电子刊物改进
设备独立布局
虚拟化操作系统："hDC"是完全不透明
多列
无数的安全修补程序
英文介绍
RichEdit 1.0 Features
Basic nonUnicode editing, cut/copy/paste, file streaming
Basic set of character/paragraph formatting properties
Message-based interface plus OLE interfaces: IRichEditOle and IRichEditOleCallback
Vertical text and IME support (FE builds only).
WYSIWYG editing using printer metrics
Different builds for different scripts
Common-control notifications plus some new ones
Plain text and RTF files
Pen-enabled and understood gestures for use with Pen Windows
RichEdit 2.0 Additions
Unicode internally + able to read/write using codepages
International line breaking algorithm
Find Up/Down. Magellan mouse support.
Multilevel undo
BiDi (RE 2.1) and FE support including level 2/3 IME, dual font, keyboard linking, smart font apply
AutoURL recognition. Word UI
Plain/rich, single-line/multiline, scalable architecture
Password and accelerator control options
Windowless interfaces (ITextHost/ITextServices)
Better display (mixed fonts use off-screen bitmap), system selection colors, transparency support
TOM (Text Object Model) dual interfaces
Character formatting additions include background color, locale ID, underline type, superscript/subscript.
Paragraph formatting additions include space before/after, line spacing.
Roundtrip all Word Format Font/Para dialog properties
Extensive code stabilization, testing, performance increase
RichEdit 2.5 Additions
First Windows CE version. Used by Pocket Word
Outline view, normal and heading styles
RTF additions
Minor UI improvements
Western languages only
RichEdit 3.0 Additions
Used for emulating RichEdit 1.0's
Zoom
Italics caret/cursor. URL hand cursor
Paragraph numbering (alpha, numeric, Roman)
Simple tables (no wrap in cells)
More underline types, underline coloring, hidden text
More of Word's default hot keys, e.g., accent dead keys, outline view, numbering
Smart quotes (English only), soft hyphens
Use Office's LineServices component to break/display lines. Used for complex scripts and options like center, right, decimal tabs, fully justified text
Complex script support for BiDi, Indic, and Thai with help from LineServices and Uniscribe components
Font Binding based on charset, which acts as writing system ID
Codepage-specific stream in/out
UTF-8 RTF. Used preferentially for cut/copy/paste. Can be streamed in/out.
Office 9 IME support (MSIME98) including Reconversion, Document feed, Mouse Operation, and Caret position features
AIMM component IME support for nonFE systems.
Increased freeze and undo/redo control
Font increment/decrement function
System edit control, list box, and combo box controls
Alt+x input method
Used to emulate RichEdit 1.0's
RichEdit 3.5 Additions
Second Windows CE release. Used by eBooks
Screen-size pagination
Text wrap around objects flushed left/right
Custom ClearType support
Enhanced East Asian typography
RichEdit 4.0 Additions
Multilevel tables
Autocorrect
Improved autoURL detection
Friendly name hyperlinks
Font binding according to writing system (generalization of charset)
Indic support
Vertical text
Support for the latest IMEs
Speech and handwriting input (Windows Text Services Framework)
More standard hot keys
Many security fixes (3.0 has also)
RichEdit 5.0 Additions
Multiselection, smart drag&drop
Better nested tables, horizontally merged cells
Better font binding/international support
More underline styles, small cap & shadow emulation
Binary file format: "parsed XML"
Partial XHTML reader/writer
Subpixel ClearType support
Better RTF handling, e.g., multilevel lists
URL tooltips
Many bug/minor-request fixes
Improved ink support, especially for OneNote
Advanced East Asian typography
Initial PTS integration, including object tight wrap
Infrastructure for math, ruby, warichu, tatenakayoko
Text trackers and blobs
RichEdit 5.1
Third Windows CE release. Used by Pocket Word
Various UI and RTF enhancements
RichEdit 6.0 Additions
High-quality editing & display of math
Formula autobuildup
Create and support math linear format
More list numbering options
Simple "visi" mode
URL improvements
Multistory: high-perf cut/copy/paste, rich scratchpads, WP infrastructure
Text Object Model 2
Display enhancements, e.g., word underline, horizontal scaling
Table UI adds, e.g., column resizing
OfficeArt/PowerPoint enhancements
Overlapping lines, drop caps & other ePeriodicals improvements
Device independent layout
Virtualized OS: "hDC" is totally opaque
Multiple columns
Myriad security fixes
http://blog.csdn.net/akof1314/article/details/6606211