I'm using the RC 8.5.4686.
Because my DLL is deliverd to another author's folder (which must exist), you kindly added the No "Make new folder" option to the Select Install Folder dialog.
However, that leads to another problem. At build time, I don't know where the third-party software is installed, so I make a guess. The user sees my guess, which may be incorrect. At that point the Select Install Folder dialog is visible and showing the wrong folder. User must change to a valid folder in order for installation to continue. User can't create a new folder and must navigate to a valid existing folder.
How can I prevent installation continuing when a valid folder has not been selected?