Code V5R1M0 doesn't report events back after Win2k upgrade

I fully realise I am working with old software on an old PC but I am stuck
here for the moment.

Code V5R1M0, sp5 applied.  Was working GREAT on my PII 450 128 meg machine.
Our network folks insisted that we all run Win2k and in lieu of getting my
PC re-formatted and a clean load, I upgraded from Win98 to Win2k.  Had very
few problems doing the upgrade and most everything ran just fine afterwards.

Code wouldn't verify, claiming comms errors.  Which was odd since I have no
trouble signing on and downloading new source.  Compiles worked, too, but
didn't pop up the event window.  I guessed Win2k did something funny so I
went to the ftp site and grabbed SP5 and re-loaded it. Now, verify works
fine, and the only thing that doesn't work as expected is my compile window.
Still doesn't pop up.

No errors in the communications log.
My CURLIB was, and remains the same.
EVFEVENT has a member with my compile errors in it.
I have a matching .EVT file in /WDT400/system.

To my shame, I tried un-installing it, but the un-install process simply sat
consuming 99% of the CPU, doing (apparently) nothing.  I waited over an
hour...

Any advice?
  --buck