I notice that whilst entering the NET USE command, you are not specifying a username. The usual command variables for that is:
#NET USE H: \\SERVER\DIRECTORY /USER:<username> <password>
This will only work on NT/2000 machines. If you are using 65/98, you will have to use the command below, ensuring that the username and password on the W2K server/domain are the same with that in the NDS:
#NET USE H: \\SERVER\DIRECTORY