The only info I have on this that might help was published in "SAS
Communications" years ago. I'll fax it to you if you send me a fax address.
The article in SAS Comm also references a paper from SUGI 13 (Jurassic Era)
Proceedings by Sarah Howey Dietrich entitled "Creating a Shipping
Information System Using SAS Software and Barcodes." I never saw the
article but I imagine its out there somewhere.
Please share with me any info you might receive other than through the SAS-L