Single User Agent allows multiple users to run agents on the same machine. The great thing about this feature is that users don't have to have root or administrative access to start the agent process. Access is then transparent allowing the agent to have access any where on the file system the user has access to.
CA Harvest 12.x, 13
Windows, Linux, UNIX
To run an agent in single user mode one just has add the flag "-usr=YourUserID" in the Hagent.arg file or on the command line.