Or - to expand on what CCzech said...
LANDesk software distribution checks whether the local user has got local admin rights when it runs. If a user does not, we automatically re-launch as LOCAL SYSTEM (since most users don't have the rights to install software).
Obviously this means that any other operation also gets executed in the LOCAL SYSTEM context. So you need to take care of your packages accordingly.
LANDesk EMEA Technical Lead