diff --git a/src/Config.ahk b/src/Config.ahk
index 886e1be..6c5af2b 100644
--- a/src/Config.ahk
+++ b/src/Config.ahk
@@ -94,8 +94,6 @@ Config_init() {
   
   ; configuration management
   Config_autoSaveSession := False  ; Automatically save the current state of monitors, views, layouts (active view, layout, axes, mfact and msplit) to the configuration file (set below) when quitting bug.n.
-  If Not Config_filePath           ; The file path, to which the configuration and session is saved. This target directory must be writable by the user (%A_ScriptDir% is the diretory, in which "Main.ahk" or the executable of bug.n is saved).
-    Config_filePath := A_ScriptDir "\Config.ini"
   
   Config_restore("Config")
   Config_getSystemSettings()
diff --git a/src/Main.ahk b/src/Main.ahk
index 20ecf7e..6e5804b 100644
--- a/src/Main.ahk
+++ b/src/Main.ahk
@@ -32,22 +32,13 @@ SetWinDelay, 10
 #WinActivateForce
 
 ; pseudo main function
-  EnvGet, appDir, APPDATA
-  bugnDir := appDir . "\bug.n"
-  IfNotExist, %bugnDir%
-    FileCreateDir, %bugnDir%
-  FileGetAttrib, attrib, %bugnDir%
-  IfNotInString, attrib, D 
-  {
-    MsgBox, The file path '%appDir%' already exists and is not a directory. Aborting.
-    Return
-  }
-  logFile := bugnDir . "\bugn_log.txt"
-  Log_init(logFile, False)
-  
-  Log_msg("====== Initializing ======")
   If 0 = 1
-    Config_filePath = %1%
+    Main_dataDir = %1%
+  Else
+    Main_dataDir = %A_ScriptDir%    ;; %A_ScriptDir% is the directory, in which 'Main.ahk' or the executable of bug.n is saved.
+  Log_init(Main_dataDir "\log.txt", False)
+  Log_msg("====== Initializing ======")
+  Config_filePath := Main_dataDir "\config.ini"
   Config_init()
   
   Menu, Tray, Tip, %NAME% %VERSION%