I have .net applications which download files from my website and calls php scripts as well. Some download commands are fired using My.Computer.DownloadFile command. In some cases Webclient is used. If my website starts using ssl and default pages open using https then will http url links work. For e.g.
My.Computer.Network.DownloadFile("http://www.mywebsite.com/abcd.pdf", Application.StartupPath & "\abcd.pdf")
Whether if sites supported ssl and then also will the above work or I have to replace http with https and then only file downloads will work. For protected folders will it make a difference or not. Lastly I used web client to pass and read data from php script. In that case any changes is required or not.