I have tried a good way for me to go from one task to another with a bat link
I can use the bat link to go from a task in a list to another task in the same list. Or from a task in a list to a task in other list.
the general syntax i used is :
echo off
path to the program in your pc ......\ToDoList\ToDoList.exe "path to the task list \TaskLists\tasklistname.tdl" -tid ID
By example
echo off
Y:\PORTABLES\Oficina\ToDoList\ToDoList.exe "Y:\GABINETE\PROYECTOS\MODELOS\CONTROL\TaskLists\expediente.tdl" -tid 1179
applying I go to the task with ID 1179 in the task list expediente.tdl
I put the link to the bat file in the File Link field .
Goes well even inside the same tasklist.
Questions to be refined :
a) that the black console window of msdos don't open...
b) that when the bat is executed to go to another tasklist this tasklist is presented in focus.