We just got done doing the schema update, consoleone snapins and pxe server
upgrades from 4.x zenworks.

On 2 xp machines, we tried the zen 6.5 agents. It seems that a few min
after launching an app using the 6.5 agents, nalagent.exe goes to 99% of the
cpu and stays there until a reboot.

Machines have latest c32, all of the zen 6.5 agent files are except
nwapp32 which says

We use application explorer for launching apps.

Any suggestions...