Agent update for the masses

I've uploaded the latest agent to our desktops to c:\data\vmware-viewagent...

And I run the following

psexec.exe -u domain\Administrator -p ******* @C:\PSTools\pub_pc_ip_address.txt C:\Data\VMware-viewagent-5.1.2-928164.exe /s /v "/qn VDM_VC_MANAGED_AGENT=1 ADDLOCAL=Core,PCoIP,SVIAgent,USB"

When I run the above 'nothing' happens, unless I kick off the PCoIP connection and console to the desktop.

Is there any other requiments that I might be missing?