NetWare - it used to be the only option for a file and print server if you had x86 hardware. Even when NT became available, people would scorn it in favour of NetWare's superiority.
Nowadays, things are a bit different. It's still superior in most large enterprise respects - it is stable, well documented, easy to manage, and scales like a trooper! Hardware support is dying off a bit though, and migration to those lovely "lock-in" applications like MS-SQL and MS-Exchange, coupled with the rise of Linux as a file and print server, is slowly squeezing NetWare out of the market it helped to create.
NetWare 6 though, it must be said, is LOVELY!
Stuff it can do (aka features):
GreigMcGill LOVEEESSSS NetWare 6. Now, if only they'd sort out their licensing...
Is there a WIKI for Netware? nsweb or Apachie ? I still use Netware 5.0, I am looking at the upgrade options too.. great system