Problem

Whenever there is a change in the Agent Version, the Endpoint Central Agent will automatically get upgraded during the 90 minutes refresh cycle. If you are trying to upgrade the agents manually in client machines instead of waiting for the automatic upgrade, you need to first uninstall the existing agents to proceed with Agent Upgrade. However when you do this you find that agent uninstallation fails with error message - "Fatal Error".

Cause

You may encounter this error due to one or more of the following reasons:

1. The uninstallation component for the agent is missing i.e. dcagent.dll is missing under programfiles\desktopcentral_agent
2. Registry got tampered i.e. Registry entries under HKEY_LOCAL_MACHINE\Software\Desktopcentral\DCAgent\ might be corrupted / deleted

Resolution

Manually uninstall the agents

The following steps will help you uninstall the Endpoint Central Agents in your client machines.

1. Download the script.
2. Rename the script as dcagentCleanup.vbs
3. Run the script using the command prompt [Drive:\directory>cscript dcagentCleanUp.vbs]

Re-install the Endpoint Central Agent (Upgrade)

1. Click the Download Agent button in the Scope of Management page.
2. Download the appropriate agent type i.e. LAN Agent / Remote Office Agent and install the same on the client computers.