From: Rob Gingell
RSEXEC (Resource Sharing EXEC) done on TENEX earlier
in the 1970s.
That was associated with the National Software Works project:
https://apps.dtic.mil/dtic/tr/fulltext/u2/a132320.pdf
I think? (It's been four decades since I looked at NSW, so I don't recall
much about it.) Neither was TENEX-specific; e.g. there were Multics
implementations of RSEXEC and NSW.
Noel