There have been cases when you have to update the remote agents on the remote clients. Most of us either push install the remote agent or perform the local install of the remote agent . Some time its difficult to use the push install utility or perform the local install when you have to update the remote agent on many servers . So here is the solution for it ,there is a new utility in 12.5 called the Remote Agent for Windows Systems Bulk Upgrade and Update Utility. Its documented in the Administrators guide on page 904. You can run the utility from the install directory of Backup Exec. The utility name is "RAWSBulkUpdate.exe.
Here is an excerpt from the admin guide:
The Remote Agent for Windows Systems Bulk Upgrade and Update Utility lets you install Remote Agent upgrades and updates to multiple servers simultaneously. The utility helps you to better manage environments with multiple servers. You can use the Bulk Upgrade and Update Utility to validate one or more remote servers to make sure they have up-to-date versions of the Remote Agent for Windows Systems. After the Bulk Upgrade and Update Utility determines which computers need to be upgraded or updated, you can initiate the process. The Bulk Upgrade and Update Utility connects to the computers and simultaneously upgrades or updates each instance of the Remote Agent. When the process is complete, you receive status messages for each computer. The status messages tell you whether the process was successful and whether any further action is required.
Hope this information helps .