Here is the situation:
Security Suite includes LANDesk Antispyware that is based on the Lavasoft engine. You can turn on or off the specific spyware definitions that you want to scan for. In general this Antispyware is more all-encompassing and configurable than the Antispyware included in LANDesk Antivirus. Management Suite itself does not include Antispyware, the full Security Suite is necessary.
LANDesk Antivirus also includes spyware scanning. This option is configured by checking the option "Scan for risky software in addition to viruses" within the LANDesk Antivirus settings General tab.
"Risky Software" covers a large gamut of malware. This can also include items such as VNC Viewer, etc.