It does not work, in multiple, here is my script
<%
Dim uploader
Set uploader=new AspUploader
uploader.MaxSizeKB=10240000
uploader.Name="myuploader"
uploader.InsertText="Carica le fatture"
uploader.SaveDirectory="/public/clienti/pdf/" & request.form("periodo") & ""
uploader.AllowedFileExtensions="pdf"
uploader.MultipleFilesUpload=true
%>
<%=uploader.GetString() %>