GeneXus Server Extensions is a subnode of the Configuration Node that lists all the Extensions installed in the GeneXus Server instance (for information about how to install an Extension in GeneXus Server, please refer to: HowTo: Install an Extension in GeneXus Server).
For each element of the list, it shows the Extension name, author name, and version number.
Note: It's not possible to have more than one version of the same Extension.