Hide Icon for Published App

Hello, we have a particular file extension that opens a "launcher" which then passes the file to the correct application. I published the launcher and confirmed that the file redirect works. However, we don't want users to see this program as a published app because it's only the launcher and throws an error if it was not passed a file.

In other words, all users need the ability to double-click a file with a certain extension and have it open a published app but they should NOT be able to see or launch the published app itself. We currently put "DO NOT USE" at the beginning of the published app name but it would be helpful to be able to hide it completely.