流行好用的压缩工具，支持鼠标拖放及外壳扩展，完美支持 ZIP 档案，内置程序可以解开 CAB、ARJ、LZH、TAR、GZ、ACE、UUE、BZ2、JAR、ISO 等多种类型的压缩文件；具有估计压缩功能，你可以在压缩文件之前得到用 ZIP 和 RAR 两种压缩工具各三种压缩方式下的大概压缩率；具有历史记录和收藏夹功能；压缩率相当高，而资源占用相对较少、固定压缩、多媒体压缩和多卷自释放压缩是大多 压缩工具所不具备的。
Version 5.01 beta 1
1. RAR 5.0 archives can include an optional quick open information
controlled with -qo[-|+] switch or "Quick open information" options
group in archiving dialog. It allows to open the archive contents
in WinRAR faster.
This version provides better update peformance for archives
containing both quick open information and service records,
such as NTFS file security. Also default parameters of quick open
information are optimized to achieve faster open time for such archives.
2. Bugs fixed:
a) "Find" command could fail when searching text string in .7z archives;
b) when opening RAR 5.0 archive with encrypted file names stored
in another such archive, WinRAR could issue an erroneous message
that password is incorrect. It happened only if passwords to inner
and outer archives were different. It did not affect extraction,
all files could be unpacked regardless of this message;
c) option "Use for all archives" in password dialog did not suppress
additional password requests for RAR 5.0 archives with encrypted
file names;
d) WinRAR address bar did not process correctly environment variable
based paths, such as %temp%;
e) storing NTFS file security and alternate data streams did not work
for file pathnames longer than 260 characters;
f) "Test" command could erroneously report damaged data in valid
recovery record if only a part of files in RAR 5.0 archive
was tested. It did not happen if entire archive contents was tested;
g) "Test" command erroneously reported errors when verifying
RAR 4.x Unix symbolic links;
h) WinRAR "View" command did not work for files inside of BZIP2 archives;
i) if "High precision modification time" option in archiving dialog
was turned off, WinRAR did not store the modification time at all
instead of storing a lower precision time;
j) destination paths containing .\ or ..\ component did not work
when extracting non-RAR archives in WinRAR command line mode;
k) WinRAR failed to unpack multivolume CAB archives.