<TR><TD><A href="7z.html" class="MenuLink">7z Format</A></TD></TR>\r
<TR><TD><A href="sdk.html" class="MenuLink">LZMA SDK</A></TD></TR>\r
<TR><TD><A href="download.html" class="MenuLink">Download</A></TD></TR>\r
-<TR><TD><A href="register.html" class="MenuLink">Donate</A></TD></TR>\r
<TR><TD><SPAN class="MenuCurrent">FAQ</SPAN></TD></TR>\r
<TR><TD><A href="support.html" class="MenuLink">Support</A></TD></TR>\r
<TR><TD><A href="links.html" class="MenuLink">Links</A></TD></TR>\r
</TABLE>\r
<TABLE cellpadding=2 cellspacing=0 border=0 width="100%">\r
<TR><TD><HR></TD></TR>\r
-<TR><TD><A href="http://sourceforge.net/projects/sevenzip/"><IMG src="http://sourceforge.net/sflogo.php?group_id=14481&type=11" width=120 height=30 border=0 alt="7-Zip at SourceForge.net"></A></TD></TR>\r
-<TR><TD><A href="http://sourceforge.net/forum/forum.php?forum_id=45797">Forum</A></TD></TR>\r
-<TR><TD><HR></TD></TR>\r
</TABLE>\r
+\r
<P>\r
<B>English</B><BR>\r
-<A href="http://7-zip.hit.bg/">Bulgarian</A><BR>\r
-<A href="http://7z.sparanoid.com/">Chinese Simpl.</A><BR>\r
+<A href="http://sparanoid.com/lab/7z/">Chinese Simpl.</A><BR>\r
+<A href="http://www.developershome.com/7-zip/">Chinese Trad.</A><BR>\r
+<A href="http://7zip-eo.rnbastos.com/">Esperanto</A><BR>\r
<A href="http://www.spiroo.be/7zip/">French</A><BR>\r
+<A href="http://www.7-zip.de/">German</A><BR>\r
<A href="http://sevenzip.sourceforge.jp/">Japanese</A><BR>\r
+<A href="http://7-zip.org.pl/">Polish</A><BR>\r
<A href="http://7zip.rnbastos.com/">Portuguese Brazil</A><BR>\r
-<A href="http://7-zip.org.ua/ru/">Russian</A><BR>\r
-<A href="http://www.7-zip.si/">Slovenian</A><BR>\r
-<A href="http://7-zip.org.ua/">Ukrainian</A><BR>\r
+<A href="http://7zip-es.updatestar.com/">Spanish</A><BR>\r
+<A href="http://7zip-thai.inetbridge.net/">Thai</A><BR>\r
+<A href="http://7zip-vi.updatestar.com/">Vietnamese</A><BR>\r
</P>\r
\r
</TD>\r
<P>Yes, 7-Zip is free software. You can use it on any computer. You don't need to \r
register or pay for 7-Zip.</P>\r
\r
-<H4>Why do the add, delete and update operations not work for some existing archives?</H4>\r
-<P>The current version of 7-Zip can't execute some operations with .7z archives that have been \r
-created with the "solid" option switched on. You can disable solid mode with -ms=off switch \r
-in command line</P>\r
+<H4>How can I set file associations to 7-Zip in Windows 7 and Windows Vista?</H4>\r
+<P>You must run 7-Zip File Manager in administrator mode. \r
+Right-click the icon of 7-Zip File Manager, and then click <B>Run as administrator</B>.\r
+Then you can change file associations and some other options.</P>\r
\r
-<H4>What about ACE archive support?</H4>\r
-<P>Support for ACE archives could be implemented in 7-Zip, if the source code \r
-of that format was available, and the license allowed it. The Unace.dll \r
-library from the authors of the ACE program is not \r
-compatible with the plugin interface of 7-Zip (Unace.dll works with files, but \r
-7-Zip only allows plugins to work with abstract streams). For this reason 7-Zip can't use \r
-Unace.dll without a complex wrapper.</P>\r
+<H4>Why 7z archives created by new version of 7-Zip can be larger than archives created by old version of 7-Zip?</H4>\r
\r
-<H4>Why doesn't the command line version add files without extensions to an archive?</H4>\r
-<P>You're probably using a *.* wildcard. 7-Zip doesn't use the operating system's wildcard mask parser, \r
-and consequently treats *.* as any file that has an extension. \r
-To process all files you must use the * wildcard instead or omit the wildcard altogether.</P>\r
+<P>New versions of 7-Zip (starting from version 15.06) use another file sorting \r
+order by default for solid 7z archives.</P>\r
+\r
+<P>Old version of 7-Zip (before version 15.06) used file sorting "by type" ("by extension").</P>\r
+<P>New version of 7-Zip supports two sorting orders:</P>\r
+<UL>\r
+ <LI>sorting by name - default order.</LI>\r
+ <LI>sorting by type, if '<B>qs</B>' is specified in <B>Parameters</B> field in "Add to archive" window, \r
+ (or <B>-mqs</B> switch for command line version).</LI>\r
+</UL>\r
+\r
+<P>You can get big difference in compression ratio for different sorting methods,\r
+if dictionary size is smaller than total size of files.\r
+If there are similar files in different folders, the sorting "by type" can provide \r
+better compression ratio in some cases.</P>\r
+\r
+<P>Note that sorting "by type" has some drawbacks.\r
+For example, NTFS volumes use sorting order "by name", so if an archive uses \r
+another sorting, then the speed of some operations for files with unusual order \r
+can fall on HDD devices (HDDs have low speed for "seek" operations).</P>\r
+\r
+<P>You can increase compression ratio with the following methods:</P>\r
+<UL>\r
+ <LI>Increase dictionary size. It can help when 'qs' is not used.</LI>\r
+ <LI>Specify '<B>qs</B>' in <B>Parameters</B> field (or use <B>-mqs</B> switch for command line version).</LI>\r
+</UL>\r
+\r
+<P>If you think that unusual file order is not problem for you, \r
+and if better compression ratio with small dictionary is more important for you,\r
+use '<B>qs</B>' mode.</P>\r
\r
<H4>Why can't 7-Zip open some ZIP archives?</H4>\r
<P>In 99% of these cases it means that the archive contains incorrect headers.\r
Instead try to find the program that was used to create the archive and inform the developers \r
of that program that their software is not ZIP-compatible.</P>\r
\r
-<P>There are also some ZIP archives that were encoded with methods unsupported by 7-Zip. \r
-Some of these unsupported methods: PPMd (WinZip), WAVPack (WinZip).</P>\r
+<P>There are also some ZIP archives that were encoded with methods unsupported by 7-Zip,\r
+for example, WAVPack (WinZip).</P>\r
+\r
+<H4>Why can't 7-Zip open some RAR archives?</H4>\r
+<P>7-Zip 9.20 supports RAR 2/3/4 formats only and doesn't support RAR5 archives.\r
+But latest versions of 7-Zip supports RAR5 archives.</P>\r
+\r
+<H4>Why does drag-and-drop archive extraction from 7-Zip to Explorer use temp files?</H4>\r
+<P>7-Zip doesn't know folder path of drop target.\r
+Only Windows Explorer knows exact drop target.\r
+And Windows Explorer needs files (drag source) as decompressed files on disk.\r
+So 7-Zip extracts files from archive to temp folder and then \r
+7-Zip notifies Windows Explorer about paths of these temp files.\r
+Then Windows Explorer copies these files to drop target folder.</P>\r
+\r
+<P>To avoid temp file usage, you can use Extract command of 7-Zip or \r
+drag-and-drop from 7-Zip to 7-Zip.</P>\r
+\r
+<H4>Why doesn't the command line version add files without extensions to an archive?</H4>\r
+<P>You're probably using a *.* wildcard. 7-Zip doesn't use the operating system's wildcard mask parser, \r
+and consequently treats *.* as any file that has an extension. \r
+To process all files you must use the * wildcard instead or omit the wildcard altogether.</P>\r
+\r
+<H4>Why doesn't -r switch work as expected?</H4>\r
+<P>In most cases you don't need -r switch.\r
+7-Zip can compress subfolders even without -r switch.</P>\r
+<P>Example 1:</P>\r
+<PRE> 7z.exe a c:\a.7z "C:\Program Files"</PRE>\r
+<P>compresses "C:\Program Files" completely, including all subfolders.</P>\r
+<P>Example 2:</P>\r
+<PRE> 7z.exe a -r c:\a.7z "C:\Program Files"</PRE>\r
+<P>searches and compresses "Program Files" in all subfolders of C:\ (for example, in "C:\WINDOWS").</P>\r
+If you need to compress only files with some extension, you can use -r switch:\r
+<PRE> 7z a -r c:\a.zip c:\dir\*.txt </PRE>\r
+<P>compresses all *.txt files from folder c:\dir\ and all it's subfolders.</P>\r
+\r
+<H4>How can I store full path of file in archive?</H4>\r
+<P>7-Zip stores only relative paths of files (without drive letter prefix).\r
+You can change current folder to folder that is common for \r
+all files that you want to compress and then you can use relative paths:</P>\r
+<PRE>\r
+ cd /D C:\dir1\\r
+ 7z.exe a c:\a.7z file1.txt dir2\file2.txt\r
+</PRE>\r
\r
<H4>Why can't 7-Zip use big dictionary in 32-bit Windows?</H4>\r
<P>32-bit Windows allocates only 2 GB of virtual space per one application. \r
\r
<H4>How can I install 7-Zip in silent mode?</H4>\r
\r
-<P>Use the "/S" parameter to do a silent installation and the "/D=dir" parameter \r
-to specify the "output directory". These options are case-sensitive. \r
-7-Zip uses the NSIS installer by Nullsoft.</P>\r
+<P>For exe installer: Use the "/S" parameter to do a silent installation and the "/D=dir" parameter \r
+to specify the "output directory". These options are case-sensitive.</P>\r
+\r
+<P>For msi installer: Use the /q INSTALLDIR="C:\Program Files\7-Zip" parameters.</P>\r
\r
\r
+<H4>How can I recover corrupted 7z archive?</H4>\r
+\r
+<P>There are some possible cases when archive is corrupted:\r
+<UL>\r
+ <LI>You can open archive and you can see the list of files, but when you press \r
+ Extract or Test command, there are some errors: Data Error or CRC Error.\r
+ <LI>When you open archive, you get message "Can not open file 'a.7z' as archive"\r
+</UL>\r
+\r
+<P>It's possible to recover some data. Read about recovering procedure:\r
+\r
+<P><A href="recover.html">Recover corrupted 7z archive</A></P>\r
+\r
+<BR><BR>\r
<H2><a name="developer_faq"></a>Developer FAQ</H2>\r
\r
<H4>Why are there linking errors when I compile 7-Zip or LZMA SDK with Visual C++ 6.0?</H4>\r
You can also read about the <A href="sdk.html">LZMA SDK</A>, which is available \r
under a more liberal license.</P>\r
\r
-<HR><P><SMALL>Copyright (C) 2009 Igor Pavlov.</SMALL></P>\r
-</TD></TR></TABLE></BODY></HTML>\r
+\r
+<HR>\r
+<P><SMALL>Copyright (C) 2018 Igor Pavlov. The site is hosted at <A href="https://www.digitalocean.com/?refcode=cab893b82fa8">Digital Ocean</A> </SMALL></P>\r
+</TD></TR></TABLE>\r
+\r
+</BODY></HTML>\r
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