Please add ability to configure Tixati used paths by optional "tixati.ini" file:
- check on startup, that "tixati.ini" exists near Tixati executable file ("tixati.exe" on Windows);
- parse the "tixati.ini" for options & paths.

Example:

[General]
; Instead of "tixati_portable_mode.txt"
ProtableMode=true
; Paths
DataDir=./Data
LogDir=./Data/Log