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Symantec DLP 14 agent fails to install. MainEngineThread is returning 1602


Article ID: 162668


Updated On:


Data Loss Prevention Endpoint Prevent


DLP Endpoint Agent install fails during local install.

Product: AgentInstall64 -- Vontu Custom Action | Error Invalid UninstallPasswordKey.

PROPERTY CHANGE: Adding VALIDATION_ERROR_TEXT property. Its value is 'Invalid UninstallPasswordKey.'.

Vontu Custom Action | Error Invalid UninstallPasswordKey.

CustomAction ValidateInputParameters returned actual error code 1602 (note this may not be 100% accurate if translation happened inside sandbox)

Action ended 9:43:17: ValidateInputParameters. Return value 2.

Action ended 9:43:17: INSTALL. Return value 2.

Property(S): DiskPrompt = [1]

Property(S): VALIDATION_ERROR_TEXT = Invalid UninstallPasswordKey.

MainEngineThread is returning 1602


The uninstall password is invalid, therefore the package is invalid.


  1. Create a new uninstall password for the version of agent being installed.
  2. Create a new Agent Install package with the new uninstall password.