I've just upgraded two of our NW6SP5 servers to NW6.5SP4a using the
overlay CD's. Since then, both servers have crashed and we're sitting at
the DOS screen with thise message:
Cannot load file C:\command.com. Insert correct disk and strike any key.
Unable to execute server. Insufficient memory.

Power cycling the server brings the servers back up without a problem.

The first time this happended there were no abends in the log file. The
second time it abended with the zlss.nss module and the second server
with the httpstk.nlm. I'm not sure where to start investigating. Any