Not seeing component in the Add Components list.

Not seeing component in the Add Components list.
Cannot add UltraControls for .Net component to an OpenEdge Architect installation.

Adding UltraControls for .Net to existing OpenEdge Architect product install.

The required component is not part of the license package already installed.

When the Custom option is used during the installation of Progress OpenEdge, the capability is enabled to limit which components of a product are installed.  This is a reduction of the total components that will be installed.  If all products are required, use the Full or Complete Option during the installation.

After an installation has been completed for which the Custom option was chosen, Add Components from the Progress menu will allow other Optional components that are part of the existing package to be installed.

Components that are not part of the installed package can not be added using the Add Components option.

Use the setup or proinst from the same version of the original installation media.

Ensure the product version that you are installing from and adding to are both the same.
Example:
Installing from 10.1B Windows 32 Media to a 10.1B Windows 32 installation.

When the prompt for the directory to install into, select the original installation directory for that OpenEdge product version.
When prompted for the Serial Number and Control Codes of the new product which is to be installed, provide the appropriate Serial and Control numbers.

Progress Articles:

P4231, How to add a component to an existing installation of a Progress product?
P10417, How to add a new product to an existing Progress installation?      

References to Other Documentation:  

OpenEdge Getting Started: Installation and Configuration, OpenEdge Installation Products and Components in Windows
OpenEdge Getting Started: Installation and Configuration, OpenEdge Installation Products and Components on UNIX