The file format is OPTION=VALUE
Between the OPTION , the = and the VALUE are no spaces.
You can comment out any OPTION or completely remove the related setting line to use the default settings.
Internally the ebook-convert command is called as follows:
ebook-convert input.azw3 output.mobi AZW2MOBI_CALIBRE_OPTIONS
Therefore the specified AZW2MOBI_CALIBRE_OPTIONS are passed after the output.mobi file.
Example: AZW2MOBI_CALIBRE_OPTIONS=--enable-heuristics
Default: AZW2MOBI_CALIBRE_OPTIONS=
See also: NOTES section below.
In the AZW2MOBI_CALIBRE_PATH setting the environment variables %USERNAME%, %USERPROFILE%, %ProgramFiles%, %ProgramFiles(x86)%, %APPDATA%, %INSTALLDIR%, and %INSTALLDRIVE% can be used.
Where the %INSTALLDIR% variable contains the install base directory of WA2L/WinTools and the %INSTALLDRIVE% the drive letter (including :)
Example: AZW2MOBI_CALIBRE_PATH=%USERPROFILE%\Documents\bin\Calibre Portable\Calibre;%INSTALLDRIVE%\bin\Calibre Portable\Calibre
Default: AZW2MOBI_CALIBRE_PATH=%INSTALLDIR%\..\Calibre Portable\Calibre;%ProgramFiles(x86)%\Calibre2;%ProgramFiles%\Calibre2;C:\Program Files\Calibre2
This is free software; see WA2LWinTools/man/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.