when I try and install the service pack using the msi file through NAL I
get the following messages

Validating Install
- Files in use; close these applications and click retry
NOVELL-DELIVERED APPLICATIONS
ZENWORKS DESKTOP MANAGEMENT AGENT - INSTALLSHIELD WIZARD

and sometimes:

GROUPWISE
MSN MESSENGER

How do I install through Zenworks when it wants me to shut down Zenworks?

Can anyone offer any suggestions, as i'm totally baffled at the moment :-(