#4 Use the current directory as first option to search for preferences.ini

[Zangune]

If I put ARZ.BAT in

C:\eMule\config

arz should start searching preferences.ini there.

[Zangune]

It will be less important if I switch to a preferences.ini-free implementation.
Read here.
Anyway I will keep the current method for a bit.

[Zangune]

Splitted to [#13].

[Zangune]

Something like

VERIFY>NUL
DIR/B "%~dp0"|FIND "preferences.ini">NUL
IF NOT ERRORLEVEL 1 (
 SET PreferencesIni="%~dp0preferences.ini"
)

works, maybe this can be coded in a better way.
Error level equal 0 cannot be used instead, because IF ERRORLEVEL n statements should be read as "if error level >= number"