have you tried net use delete etc. ?
since your suggestion, I have tried a number of variations of DELETE.
They didn't have any effect. I still get "Write error on D:" etc.
Later: Some progress. I find that the sharing name I was using for the local machine here at home was "not quite right". When I used the correct sharing name of the local machine there was no longer the "Write error on D:" and the output got to the printer. Apparently the
net use tries various disks if it doesn't understand the computer name.
The production PC is 20 miles from here and I won't be there until Thursday. I can't believe that I got the computer sharing name correct for its
net use LPT1 and always incorrect for the
net use LPT3.`
So I call
Time Out until this coming Thursday evening. Thank you for your interest.
seacue.