https://jeffpar.github.io/kbarchive/kb/103/Q103399/
Q103399: SAMPLE: NSetup.exe Reboots an MSSetup Script on User Request | KnowledgeBase Archive
An Archive of Early Microsoft KnowledgeBase Articles
https://jeffpar.github.io/kbarchive/kb/090/Q90793/
Q90793: PRB: _MSSETUP.EXE Disappears | KnowledgeBase Archive
An Archive of Early Microsoft KnowledgeBase Articles
prbexedisappearsknowledgebasearchive