An old XP ws failed the HDD
So clean install of XP Pro, patch all patches.
Installed Novell Client 4,91 SP5 ir2
Then tried to do install of the Zenworks Client, server currently on 11.3.2 FTF Roll-up

ZW client install properly, asks for reboot, then when rebooting the error comes :
Error in Explorer.exe, caused by nalshell.dll.

Retried with 11.3 full install, same.

Tried to reconfigure the package on the server, same problem.

Everytime unable to register, even zac reg gives :
Failed to Connect to IPC port.

Any ideas ( need to keep this one to XP )