SevenZip plugin can store configuration in two places:
1. If sevenzip.ini exists in plugin directory then plugin will use it
2. Otherwise it will store sevenzip.ini in commander configuration directory
SevenZip plugin search 7z.dll in next places:
1. Path from sevenzip.ini
[Library]
i386=
x86_64=
2. Plugin directory
\i386\7z.dll
\x86_64\7z.dll
\7z.dll
3. Commander directory
4. Windows system directory
SevenZip plugin can load external codecs. Plugin searches codecs in
subdirectory "Codecs" near 7z.dll.