Hi All
I am looking for a way to present the user with a folder selection to download a file to. On a regular app for desktop I would use GetSaveFolderItem. Do we have an equivalent for Web Edition?
Take a look in the LR at WebFile 
You’ll basically load your file into a WebFile and “send” it to the user.
http://documentation.xojo.com/index.php/WebFile
To augment what Albin said, remember that the web app is running in a browser, and the browser controls the download or saving of a file. You only “send” the file as Albin said, and the browser takes care of prompting the user to save it or otherwise do something with it (depending on the ForceDownload setting).