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alexmindel

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Problem to download Large mp3 file (over 4MB) using ADODB.Stream

Hi,
I created a code to download different files (jpg, gif, mp3, wma) from the client's website. I use ADODB.Stream object.
I don't have any problems with jpg and gif formats. When I try to download mp3/wma files I get IE msg: IE cannot open this site. I defined that the problem is in the file size.  If file is over 4MB (Response.BinaryWrite adoStream.Read(4194000) ) I can't download it.
I tested already different solutions like:
1. Change timeout, buffer, flush.
2. Chunk

Nothing!!! Plus I can't use any COM that needs to be registered on provider's server. Please review my code below.
I hope to get any solution ASAP.
Thanks.

*******************************************************************************
Private Sub DownloadFile(file)
   Dim strAbsFile, objFSO, objFile, adoStream
      
    Response.Buffer = False
    strAbsFile = Server.MapPath(file)

    Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
    If objFSO.FileExists(strAbsFile) Then
        Set objFile = objFSO.GetFile(strAbsFile)
      
        Response.ContentType = "application/x-unknown"  
        Response.AddHeader "Content-Disposition", "attachment; filename=" & objFile.Name
        Response.AddHeader "Content-Length", objFile.Size
      
        Set adoStream = CreateObject("ADODB.Stream")
      adoStream.Open()
      adoStream.Type = 1
      adoStream.LoadFromFile(strAbsFile)
      Response.BinaryWrite adoStream.Read(4194000)   ' <-- if file size is over then IE Msg: IE cannot open this site.
      adoStream.Close
      Set adoStream = Nothing
      Response.End
     end if
    Set objFile = Nothing
end sub

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kevp75
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i've tested it with 25M files, and the only problem (minus the timeout error which I fixed) is that it takes a little time to download it, but it does work
Avatar of alexmindel
alexmindel

ASKER

Thank you for your quick responds. I used your function but I can't still open mp3 file.
When I click on the link "download", the download popup does not appear but looks like procedure is running.
In 2-3 minutes the blank page is opened. What do you think about it?
can you download another file type?, a .doc, .zip perhaps?
I tested txt, doc, jpg and gif. They worked fine. Zip file had a size over 4MB. Thus, I couldn't download it.
Probably, I'll not be able to download any files over 4MB.
what happens if you don't use any script...ie..link to the file itslef?
I used that last variant before and got same problem: downloaded files were corrupted.
If I use direct link to the file itself it works perfect (only popup doesn't appear). I think that is the sream object problem.
Thus, I am gonna do the following: convert mp3 files to wma format (size will be around 2MB). But It is not the real solution: problem is still there.
Thank you, kevp75, for your time and help. Let me know if you find anything else later. That would be interesting because the same problem will appear from time to time.
Best regards,
Alex.
will do alex.....np