This is a bug with the Oracle import/export utility. You get this error if a schema being exported/imported has a name greater than 19 chars or so. It has been fixed in 8.1.7. Look up their bug list.
Are you trying to export the full database or only specific schemas, b'coz I know of a bug in 8.1.5 which triggered the same error only for schema level export/import.
Does it crash if you execute it from a command line or only from a scheduled task?
If so, you might be able to put the command line argument into a batch file and execute the batch file from the scheduler. Probably not the proper fix, I'm just taking a stab at it.
Bookmarks