If a folder is not empty, do something

[don_AC64]

I was not able to create a function with this condition. I tried the following code:

if(FileExists("$user profile$\01\*.*"))
    ReplaceToolbarButtonText 0 "Not empty" "File Explorer toolbar"

It works if I refer to some specific file, but it does not work if I use asterisks to refer to any kind of file, as I did in the above code.