When i try to set up an external tool it seems that the Initial Directory property is not working.
These are the settings I used:

This is the batch file:
@echo off
echo %1
echo %CD%
This is the output I get:
"C:\Users\admin\ORM Designer projects\Bachelorproeven"
C:\Program Files\OrmDesigner2
You can see that the parameter which is passed (%1) is set correctly but the current directory (%CD%) is not what it should be (they should be the same)