ASP FILE UPLOAD PROBLEM/QUESTION

filemanager/upload/asp/config.asp:
ConfigAllowedExtensions.Add "File", "doc|docx|pdf"

I've enabled upload in the same config.asp:
ConfigIsEnabled = True

I've set the path in the same config.asp:
ConfigUserFilesPath = "/UserFiles/"

I cannot upload a pdf. I get a wrong file type error message.

When I use the Upload tab on the IMAGE PROPERTIES window, I can load a jpg and it goes into the /UserFiles/ folder.

What icon or function or(?) am I supposed to use that gives me a "FILE" uploader that handles the files allowed by:
ConfigAllowedExtensions.Add "File", "doc|docx|pdf"

Thanks in advance for anyone's help.eagreen