Software Deployment

Hi! We are using ZENworks 11 to deploy our applications. And I'm looking for a way to detect if a PC is already "manage" by the McAfee ePO server. We are running "ePolicy Orchestrator v4.5.0 - Ver 4.5.0 Patch 4" with VirusScan Enterprise v8.8. Everything is up to date and running fine. The problem is that when we deploy the VirusScan it already come with the framework at version 4.5.0.1810. So how can I script something to detect if a PC is already "manage", otherwise run the "FrmInst.exe /install=agent /siteinfo=sitelist.xml" command? Is it even possible?