NWPA_UP.EXE provides a way to run NWPA drivers with NetWare 3.12 and 4.11, 
which originally did not adequately support drivers of that architecture. The 
NWPA update package was tested by Novell to function without problems on 
NetWare 4.10 as well but the intended targets are primarily 3.12 and 4.11.

For installation instructions, see:
NetWare 3.12: 
  https://web.archive.org/web/20140709081856/http://developer.novell.com/devres/storage/drivers/NWPA_Up_312.html
NetWare 4.11:
  https://web.archive.org/web/20121114010912/http://developer.novell.com/devres/storage/drivers/NWPA_Up_411.html