FIX: INET OpenURL Method Doesn't Download Complete Files

• Microsoft Visual Basic Control Creation, Professional, and Enterprise Editions for Windows, version 5.0

SYMPTOMS

When using the OpenURL method of the Internet Transfer Control to download files on the Internet, only part of the file downloads.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been fixed in Visual Studio 97 Service Pack 2.

For more information on the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q170365
   TITLE     : INFO: Visual Studio 97 Service Packs - What, Where, and Why

   ARTICLE-ID: Q171554
   TITLE     : INFO: Visual Basic 5.0 Fixes in Visual Studio 97
               Service Pack 2

MORE INFORMATION

Steps to Reproduce Behavior

1. Run Visual Basic or, if Visual Basic is already running, choose New Project from the File menu (ALT, F, N). Form1 is created by default.

2. Place an Internet Transfer Control (Inet1) on Form1 and add the following code:

         Private Sub Inet1_StateChanged(ByVal State As Integer)
            Dim strMess As String ' Message variable.
            Select Case State
            ' ... Other cases not shown.
            Case icError  ' 11
              ' Get the Text of the error.
            strMess = "ErrorCode: " & Inet1.ResponseCode & " : " &
                                                Inet1.ResponseInfo
            End Select
         End Sub
   
   

3. Place a CommandButton (Command1) on Form1 and add the following code:

         Private Sub Command1_Click()
              ' download FTP files
              Dim b() As Byte
              Dim strURL As String
   
              ' Set the strURL to a valid address.
              strURL = "FTP://GenericServer/FileToDownload.bin"
   
              ' Retrieve the file as a byte array.
              b() = Inet1.OpenURL(strURL, icByteArray)
   
              ' ** create directory on your machine with directory target
              Open "C:\Target\FileToDownload.bin" For Binary Access _
              Write As #1
              Put #1, , b()
              Close #1
          End Sub
   
   

4. From the Run menu, choose Start (ALT, R, S), or press the F5 key to run the program. Press the Command1 button to see the error when downloading the file.

Keywords          : vb5all VBKBAX VBKBAXInet VBKBComp VBKBCtrl VBKBInet VS97FixlistSP3 VS97FixlistSP2 VB5FixlistSP2
Technology        : kbInetDev
Version           : WINDOWS:5.0
Platform          : NT WINDOWS
Issue type        : kbbug
Solution Type     : kbfix kbservicepack