Hello, I don't find any explanation on how can I create the feature that is not installed as a file from the package, but downloaded from the web-site. It is not a prerequisite, rather an extension. I'd a like a user to be able to check/uncheck this feature (the same like an ordinary feature) and then, if checked, it should be downloaded and installed.
I've found a workaround for that using prerequisite install conditions, so I created an empty feature with the certain product code, that I check if installed to decide whether to download the third-party component. It would be better to be able to create install conditions based on properties and features check (I don't see any way to do that so far). Also I don't see any description about what feature is being installed at the moment: only the empty window with progress bar.