How do I remove components left behind after a failed or corrupted install/uninstall of Unicenter Network and Systems Management r11.1 agents
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How do I remove components left behind after a failed or corrupted install/uninstall of Unicenter Network and Systems Management r11.1 agents


Article ID: 55330


Updated On:


CA Workload Automation AE - Business Agents (AutoSys) CA Workload Automation AE - Scheduler (AutoSys) Workload Automation Agent CA Unicenter NSM



A failed installation or uninstall of Unicenter NSM leaves components behind. This will cause additional issues when trying to reinstall the product. The below issues may be encountered

  • Unicenter NSM agents fail after performing the install over a corrupted install or uninstall.

  • Using Add/Remove programs to remove Unicenter NSM does not launch Unicenter NSM uninstaller.

  • Components previously installed show up as installed in the install dialog GUI but they are no longer on the system.

Warning: This procedure contains registry key modifications which will affect other CA Products that are installed on the system. Please follow this procedure if ONLY Unicenter NSM Agent Technology is installed on the system. Review the Add/Remove programs list to verify which CA Products are installed.


Unicenter NSM Agent Technology Removal procedure.

Make sure all CA services are stopped then do the following:

  1. Unicenter NSM Files and Folders that can be deleted:

    1. Remove the CA_APPSW folder

    2. Remove NSM Folder. The environment variable "%AGENTWORKS_DIR% points to the default NSM install path or <InstallDrive:>\Program Files\CA\SharedComponents\CCS\AT.

    3. Remove file from c:\windows\CAI.DLL

  2. Remove the following Registry Keys

    1. Delete CA NSM services registry keys for example CA Agent Technology, CA DIA 1.2 DNA, CA Message Queuing Server, etc.


    2. Delete CA Registry Key

      Note: If other CA products are installed removing the registry key will cause all CA applications to stop functioning. If you are not sure if other CA products are installed, do not remove this registry key(s).


    3. Registry Key if NSM products exist in Add/Remove Programs


  3. Remove Environment Variables

    To Edit or Delete environment variables:

    1. Right-click My Computer then click Properties.

    2. Click the Advanced tab.

    3. Click Environment variables.

    4. Click the following options, for either a user or a system variable:

    5. Click an existing variable, and then click Edit to change its name or value.

    6. Click an existing variable, and then click Delete to remove it

      Remove Environment variables which point to the default NSM install location: <InstallDrive:>\Program Files\CA\.

      Remove Environment variables from the PATH variable.


Release: TNGEXO05500-11.1-Management-for Microsoft Exchange