automating repairs

I'm trying to automate some repairs on a few Netware servers but seem to
be having issues.

I want to run a 'Reclaim Space', which cant be done via a command line
switch for dsrepair.nlm.

So i tried using eMbox, which works manually. When i try to use it
automatically via the command line, it errors as follows

- The requested operation was cancelled

The syntax i'm using is

java -ns -cp sys:\system\embox\eMBoxClient.jar embox -s SERVER - p PORT
-n -u ADMIN -w PASSWORD -l sys:\embox.log -t DSREPAIR.RLD -f

This logs in and starts the repair but gives the error that the operatin
was cancelled.

I also cant seem to find any documentation on the DSRepair Advanced
Switches.