I have a problem with the option "Hide extensions of known files" in Windows Explorer and Visual Basic 6, specifically with the FileListBox component.
The problem has happened to me when installing in a couple of clients a program that, among other things, shows * .mp3 files of a directory through a FileListBox. The fact is that the list of files appeared empty, when there really were mp3 files in the corresponding directory.
In order for them to appear, I had to close the program and uncheck the check "Hide extensions of known files" in their Windows Explorer settings, which I do not really like having to do. In both cases it was a Windows 7.
I tried to reproduce the case on my computer, also with Windows 7, in Windows 10 and Windows XP but although I have activated the check "Hide extensions of known files" in my case they do, so I can see a bit limited when it comes to correcting this behavior.
What explanation can all this have? How can I ensure for future installations that I show the files in FileListBox even if the client has activated the check "Hide extensions of known files"?