scheduler.dll does't work for debugging anymore

The Job Scheduler creates pre-defined process classes:

10:21:04.406 javaw 0 2780.688 479.367MB <process_classes>
10:21:04.406 javaw 0 2780.688 479.367MB <process_class path="" max_processes="30" processes="0">
10:21:04.406 javaw 0 2780.688 479.367MB <file_based state="active"/>
10:21:04.406 javaw 0 2780.688 479.367MB </process_class>
10:21:04.406 javaw 0 2780.688 479.367MB <process_class path="/(temporaries)" name="(temporaries)" max_processes="30" processes="0">
10:21:04.406 javaw 0 2780.688 479.367MB <file_based state="active"/>
10:21:04.406 javaw 0 2780.688 479.367MB </process_class>
10:21:04.406 javaw 0 2780.688 479.367MB </process_classes>

Thus, it tries to create processes to run the job which should be debugged:
10:21:04.406 javaw 0 2780.688 479.367MB
10:21:04.437 javaw 32 2780.688 479.367MB

{scheduler} [debug3] (Job debug_job) Task starts due to <run_time once="yes">
10:21:04.453 javaw 15 2780.688 479.367MB {scheduler}

[debug9] (Job debug_job) SCHEDULER-931 state=running
10:21:04.453 javaw 0 2780.688 479.367MB

{scheduler}

[info] (Job debug_job) SCHEDULER-930 Task 1 started - cause: period_once
10:21:04.453 javaw 0 2780.688 479.367MB sopen("C:\DOKUME~1\ANDREA~1\LOKALE~1\Temp\sos19.tmp")
10:21:04.468 javaw 16 2780.688 479.367MB sopen("C:\DOKUME~1\ANDREA~1\LOKALE~1\Temp\sos1A.tmp")
10:21:04.484 javaw 15 2780.688 479.367MB sopen("C:\DOKUME~1\ANDREA~1\LOKALE~1\Temp\sos1B.tmp")
10:21:04.484 javaw 0 2780.688 479.367MB CreateProcess("(missing program path)",""(missing program path)" "-sos.ini=J:/E/java/al/sos.scheduler/config/marcin/config/sos.ini" "-ini=J:/E/java/al/sos.scheduler/config/marcin/config/factory.ini" "-O" "-job=debug_job" "-task-id=1" "-log= >+J:/E/java/al/sos.scheduler/config/marcin/logs/scheduler.log" "-controller=127.0.0.1:59999"")
10:21:04.484 javaw 0 2780.688 479.367MB [ERROR MSWIN-00000002 Das System kann die angegebene Datei nicht finden. [CreateProcess, (missing program path)]]