The target computer does not meet the minimum MSI version required to install the agent.
The minimum MSI version (3.1v2) is not installed on the target computer.
Install the latest version of MSI.
Windows Installer 3.1 Redistributable (v2)
For more information on troubleshooting agent installation, see Troubleshooting Issues When You Use the Discovery Wizard to Install an Agent(http://go.microsoft.com/fwlink/?LinkId=181932).