5.8

Interrogate Target Environment
The interrogate target environment action runs on the Windows machine after the installation
infrastructure is deployed to uninstall the various product modules during the VCM Agent uninstallation
process.
The following actions determine which product modules must be deployed to the target machine.
1. A connection is made to the module installer.
2. The runtime Agent lock is updated.
3. The module installer returns all modules currently installed.
4. The product modules are recorded in the database.
This action in the uninstallation process runs even if one or more of the actions fail.
Resolve Uninstall Dependencies
The resolve uninstall dependencies action uninstalls all the product modules on the target box. Product
modules are reconciled and flagged for removal and recorded in the database.
The result of the action is a list of product modules that might need to be uninstalled and a list of product
modules that must be installed. Any product modules that require deployment are recorded in the state
matrix.
This action in the uninstallation process runs even if one or more of the actions fail.
Uninstall Module
The uninstall module action removes all product modules that must be uninstalled from the Windows
machine as part of the VCM uninstallation process.
1. A list of product modules is obtained from the database.
2. A connection is made to the module installer.
3. The runtime Agent lock is updated.
4. Each module is uninstalled in turn by the module installer.
This action in the uninstallation process runs even if one or more of the actions fail.
Uninstall Module Installer
The uninstall module installer action removes the VCM Agent during the uninstallation process.
1. The product and installation infrastructure modules are removed based on the following workflow.
n The Collector connects to the module installer.
n A complete uninstallation request is generated and sent to the module installer.
n The module installer copies the registration service to the user's temp directory.
n The module installer calls on the registration service to perform the complete uninstall and the
module installer terminates itself.
n The registration service, now running as an EXE iterates over the Agent’s directories and notes all
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