7-Zip

7-Zip 4.58 alpha 9 was released.

7-Zip for 32-bit Windows:
http://www.7-zip.org/alpha/7z458a9.exe

7-Zip for 64-bit Windows x64:
http://www.7-zip.org/alpha/7z458a9-x64.msi

What's new after 7-Zip 4.57:
- Some speed optimizations.
- 7-Zip now can unpack .lzma archives.
- Unicode (UTF-8) support for filenames in .ZIP archives. Now there are 3 modes:
1) Default mode: 7-Zip uses UTF-8, if the local code page doesn't contain required symbols.
2) -mcu switch: 7-Zip uses UTF-8, if there are non-ASCII symbols.
3) -mcl switch: 7-Zip uses local code page.
- Now it's possible to store file creation time in 7z and ZIP archives (-mtc switch).
- 7-Zip now can unpack multivolume RAR archives created with
"old style volume names" scheme and names *.001, *.002, ...
- Now it's possible to use -mSW- and -mSW+ switches instead of -mSW=off and -mSW=on
- Some bugs were fixed.
- New localizations: Punjabi (Indian), Pashto.

What's new after 7-Zip 4.58 alpha 8:
- Some bugs were fixed.

Don't use this alpha version for important data. Call "Test" command after each compressing operation.

7-Zip 4.58 alpha 9 Copyright (c) 1999-2008 Igor Pavlov 2008-04-29

RAM size: 1015 MB, # CPU hardware threads: 1
RAM usage: 419 MB, # Benchmark threads: 1

Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS

22: 1386 99 1363 1348 | 15189 100 1371 1371
23: 1368 100 1398 1394 | 14632 97 1386 1339
24: 1241 95 1400 1334 | 14581 100 1353 1353
25: 946 76 1412 1080 | 13051 87 1408 1227
----------------------------------------------------------------
Avr: 93 1393 1289 96 1379 1322
Tot: 94 1386 1306

>> What's new after 7-Zip 4.58 alpha 8:
>>- Some bugs were fixed.

7zFM.exe of 7-Zip 4.58 alpha 9 does not show files on every system. It's window stays closed.
Earlier alpha 7 and alpha 8 were okay in this respect.

o_O 2x XPsp3. a9 7zFM works O_o

Do you mean Windows 98?
There is one bug in alpha 9, that will be fixed in next version.