< you must change some path in *.bat file. Just have a look at README.txt file
OK But have you successed to launch it?

Resolved!!!
You must install the folder jot at the root of your disk C and not somewhere else!!!
For mysterious reason it want just that
so only
rem *** Change this to root install location ***
set JOT_ROOT=C:\jot
and the shortcut command
C:\jot\batch\jot-config.bat

Exploring the prog seems only object format JOT can be loading !
Format JOT is explain here http://jot.cs.princeton.edu/jot-file-format.txt
Maybe a little abstract for me :)
Maybe some guy has made a plug OBJ ---> JOT :)

There is a script inside for Blender but for an old version !