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WinRAR 4.20 简体中文版/美化增强版下载(附下载)

via:IT之家     time:2012/6/15 12:20:02     readed:1219

WinRAR 是一个强力压缩工具,允许你管理和操作压缩文件。控制台 RAR 只支持 RAR格式,带有的 ".rar" 扩展名的文件。ZIP 和其他格式不被支持。Windows 用户可以安装图形界面 RAR 版本 - WinRAR,它可以处理更多的压缩文件类型。

虽然控制台 RAR 和图形界面 WinRAR 有相似的命令行语法,但是它们还有有一些不同。所以推荐使用此 rar.txt 手册用于控制台 RAR(rar.exe 在 Windows 版本的情况下),winrar.chm 是图形界面 WinRAR(winrar.exe) 的帮助文件。

WinRAR 的功能包括:

1.高度成熟的原创压缩算法

2.对于文本、声音、图像和 32 位和 64 位 Intel 可执行程序压缩的特殊优化算法

3.获得比类似工具更好的压缩率,使用'固实'压缩

4.身份校验(只有注册版本可用)

5.自解压压缩文件和分卷压缩(SFX)

6.对物理损伤的压缩文件的恢复能力

7.锁定,密码,文件顺序列表,文件安全和更多……

WinRAR 4.20 正式版 更新内容:

1. Changes in RAR compression:

a) RAR general compression algorithm is optimized for better

utilization of several processor cores. While some speed gain

is possible even in single processor mode, best results

are achieved in multi-core environment.

Speed gain depends on data type and average file size.

Several cores are utilized more efficiently when compressing

large files.

b) we had to increase memory requirements to achieve higher

compression speed. General RAR compression algorithm allocates

about 120 MB comparing to 40 MB in WinRAR 4.11;

c) RAR text compression algorithm cannot utilize several CPU cores

efficiently, so its performance in multiprocessor environment

is much lower than for general algorithm. Also its decompression

speed is much lower than in general algorithm regardless of

CPU number. So we decided to disable the text algorithm by default.

If you need maximum possible compression ratio for plain text data

regardless of speed, you can enable the text compression

in "Advanced compression parameter" dialog. Press "Compression..."

button on "Advanced" page of archiving dialog to access it.

You can also change this option permanently in default compression

profile;

In the command line mode the text compression can be enabled

with -mct switch;

d) "Fastest" (-m1) compression mode also supports several processor

cores now. In 4.11 it could use only a single processor core.

2. RAR general decompression algorithm speed is slightly improved,

though not to same extent as RAR compression. RAR decompression

is not able to use several processor cores, so its performance

does not depend on a number of cores.

3. Changes in ZIP compression:

a) now ZIP compression supports several processor cores resulting

in noticeably higher performance in multi-core environment.

Single CPU ZIP compression is also faster than in 4.11;

b) memory use for ZIP compression is increased to about 15 MB.

4. Recovery volume creating and processing can use several CPU cores

resulting in higher speed. Though, typically hard drive seek speed

is a limiting factor for recovery volumes, so this gain is most

noticeable when working with solid state drive.

5. Now the allowed value for -mt switch is 1 - 32,

not 0 - 16 as before.

6. "Find files" command can search data in 7-Zip archives.

Previously "Find files" did not support .7z archive format.

7. Windows 2000 is not supported by WinRAR and WinRAR self-extracting

modules anymore.

8. "Save current settings" button in "Advanced SFX options" dialog

is now available only when converting an existing archive to SFX.

Options saved with this button are applied only to convert to SFX

operation.

If you create or update SFX archive, only SFX options stored

in default compression profile are used. Options saved

in "Advanced SFX options" dialog are ignored for these operations.

支持运行环境:Windows XP/Vista/Win7

WinRAR 4.20 简体中文版 32位 下载

(1.8MB)

WinRAR 4.20 美化增强版 32位 下载

(2MB)

WinRAR 4.20 简体中文版 64位 下载

(2MB)

WinRAR 4.20 美化增强版 64位 下载:

(2.2MB)

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