Novell Doc: ZENworks Endpoint Security Management Administration Guide - Upgrading the Endpoint Security Client 3.5

7.4 Upgrading the Endpoint Security Client 3.5

You can upgrade the Endpoint Security Client by doing one of the following:

By utilizing the Endpoint Security Client Update option. For more information, see ZSC Update.
By running the new install executable (the default name is setup.exe) with the STUPGRADE=1 switch activated, on each client machine.
By running an MSI uninstall of the current Endpoint Security Client and running a new installation (MSI cannot perform upgrades).

7.4.1 Setting the Upgrade Switch

Open the new installation package for the Endpoint Security Client, then right-click setup.exe.
Click Create Shortcut.
Right-click the shortcut, then click Properties.
At the end of the Target field, after the quotes, press the Spacebar once to insert a space, then type /V“STUPGRADE=1”

Example: “C:\Documents and Settings\euser\Desktop\CL-Release-3.2.455\setup.exe” /V“STUPGRADE=1”.
Click OK.
Double-click the shortcut to launch the upgrade installer.