[kochbeck]

I notice IBM was a major licensee. If you can figure out which product it was used in, the successor to that division (since I suspect it was something that’s now dead like PSP or mass storage) almost certainly has a clean copy of the source that’s been indexed on a mainframe tape wherever that program group’s library is now archived. It was a massive PITA to go on that sort of hunt when we HAD 3270s on our desks, so I can’t imagine what kind of untoward favors you’d have to offer IT to find it now. But unless decades of archival policies were rolled back, is there somewhere. Look for a product they sold to the federal government. They’re probably still supporting it.