When trying to install the Extensibility Accelerator, encountering errors. I launch the UFT setup and click Add-in Extensibility and Web 2.0 Technologies, which launches a web page with links on it. I click the Extensibility Accelerator link and then click the Run button, but I get the following err...

I'm trying to understand how the UFT Extensibility Add-in is used, if it requires a special license, and how it relates to "Extensibility Accelerator" and "Testing Extensibility" (which are both referenced in the UFT online help).