Classic ASP validate form input File type

I need to know how to check if is a value is in the input
field of type file in classic ASP. The input field name and id is
file, and type is file. The form type is multipart/form-data and
name form1.
I am using Upload.asp object by Jacob Gilley to handle my
uploading. If the user submits without selecting a file to upload;
the site errors out. The user should have the option to submit with
or without a file. I need to validate on the server side.
I try
len(Uploader.form("file"))) > 3
Thanks for any help
David Pearson

I found a solution, posting in case somebody else has the
same problem.
if ( Uploader.Files.Count > 0 ) then
'do file processing
end if
Thanks all
David Pearson

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