Job RDDIMPDP is not triggered by sapevt

Dear experts

I am facing this problem form last one month previously i used one note to schedule RDDIMPDP and that time it was it was working but i am facinf this problem again

This issue is known and described under OSS Note 449270 - Job RDDIMPDP is not triggered by sapevt.

I found the following entry in log file SLOG0839.NSP:

ERROR: The following call returned with exit code 7:

ERROR: sapevt.exe SAP_TRIGGER_RDDIMPDP -t name=NSP

ERROR: Background jobs cannot be started.

ERROR: Please check trace file dev_evt.

dev_evt file has the following:

Wed Sep 24 11:54:28 2008

Trace File of External Event Raiser (Level=0, Append=1)

EventID: SAP_TRIGGER_RDDIMPDP

ERROR ***: Cannot determine mshost

Please help in this regard