2. business software
  3. news
  4. reviews
  5. top apps
ダウンロードする WinRAR

WinRAR 4.2

RARLab  (シェアウェア)

WinRAR はRAR と ZIP アーカイブに完全対応したアーカイブユーティリティーで、CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, 7Z, Z のアーカイブを解凍する事ができます。他のソフトに比べ小容量のアーカイブを作成するので、これによりディスクスペースを確保する事ができ、送信コストの削減にもなります。

WinRAR はマウスやメニュー、コマンドラインインターフェースを利用した対話型グラフィックインターフェースを提供します。WinRAR は単純な質問応答のプロセスで基本的なアーカイブ機能に即時アクセスできる特別な"Wizard"モードを採用することにより、他のアーカイブソフトに比べ使用が簡単になりました。

WinRAR は128ビットキーのAES (Advanced Encryption Standard)でアーカイブを暗号化するので安心に使用でき、8兆5千890億ギガバイトまでのファイルやアーカイブに対応します。WinRARでは自己解凍アーカイブやマルチボリュームアーカイブの作成もでき、リカバリー記録とリカバリー容量により物理的に損傷したアーカイブまで再構成することが可能です。

タイトル: WinRAR 4.20 (32-bit)
ファイル名: wrar420.exe
ファイルサイズ: 1.45MB (1,517,376 バイト)
動作環境: Windows XP / Vista / Windows 7 / Windows 8 / Windows 10 / Windows 10 64-bit
言語: 多言語
ライセンス: シェアウェア
追加日: 2012年06月15日
作者: RARLab
ホームページ: www.rarlab.com
MD5チェックサム: E1ED6342BAFFB7F0BE44B5EBA8F8A7F3

# Changes in RAR compression:
* 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.
* 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;
* 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;
* "Fastest" (-m1) compression mode also supports several processor cores now. In 4.11 it could use only a single processor core.
# 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.
# Changes in ZIP compression:
* 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;
* memory use for ZIP compression is increased to about 15 MB.
# 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.
# Now the allowed value for -mt switch is 1 - 32, not 0 - 16 as before.
# "Find files" command can search data in 7-Zip archives. Previously "Find files" did not support .7z archive format.
# Windows 2000 is not supported by WinRAR and WinRAR self-extracting modules anymore.
# "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.

blog comments powered by Disqus