The 'trailing backslash' ? That is the backslash at the end of the folder name:
c:\aaa\ <- trailing slash
c:\aaa
The example in the docs is a bit confusing. All the slashes seem to be missing. If you try to create the folder "c:winntsystem32myfolder" and then check it's filetype, it returns 2. However the folder is not created. Probably it only checks the existance of drive "C:", because if you change it to "z:winntsystem32myfolder" filetype returns a zero.
But in the archives is an example that creates folders and subfolders at once.
c:\aaa\ <- trailing slash
c:\aaa
The example in the docs is a bit confusing. All the slashes seem to be missing. If you try to create the folder "c:winntsystem32myfolder" and then check it's filetype, it returns 2. However the folder is not created. Probably it only checks the existance of drive "C:", because if you change it to "z:winntsystem32myfolder" filetype returns a zero.
But in the archives is an example that creates folders and subfolders at once.