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.

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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