Downloading Files on my ASPlogin web site

I have a .asp web site that uses asplogin. I have 100's of files that users download. For some reason or download method only allows files names with 35 characters max. That includes spaces and file name extension. Any ideas on how I might be able control that to allow longer file names?

Example of download code:

<%

' This script will log a request for a file, and redirect to the appropriate file to
' download it.

' Retrieve FileInfo and page values from request

Dim ftpUsername
Dim ftpPassword
Dim szFileInfo
Dim szPage
szFileInfo = Request.QueryString("FileInfo")
szPage = Request.QueryString("Page")
ftpUsername="xxxxxx"
ftpPassword="xxxxxx"

' Figure out which file to download
Dim szFileName

Select Case szFileInfo
Case "23hgf6587"
   szFileName = "shortfilename.pdf"

End Select
' Set variables for log, then include log file to save record
Notes = "File Download: " & szFileName
PageName = szPage
%>

<!--#include virtual="/log.asp"-->

<%
' Begin file download
Response.Redirect "ftp://"& ftpUsername & ":" & ftpPassword & "@ftp.xxxxx.com/" & szFileName
%>

Edited by Justinh - 25 July 2008 at 2:43pm

Thanks for the help. Hmm, you didn't really help with my question. The way I have it built is working. I just want to control the length of files names.

I wish that was the case. I know the windows part allows 255 characters and I asked our server guy to check any settings in IIS6 and he said he didn't see anything. Where on server could he look?