BUG: Internet Transfer Control (SP2) Username and Password Fails

ID: Q173265


The information in this article applies to:
  • Microsoft Visual Basic Professional and Enterprise Editions for Windows, version 5.0
  • Microsoft Visual Studio 97sp2


SYMPTOMS

The Internet Transfer Control included in Service Pack 2 for Visual Studio 97 is unable to make authenticated connections for either the HTTP or FTP protocols. Anonymous connections still work. If you try to specify the Username and Password, you will get the following error:

Run-time error '35754'
Unable to connect to remote host


CAUSE

This version of the control does not properly handle the Username and Password properties.


RESOLUTION

To restore this functionality temporarily, replace the Msinet.ocx included with SP2 with the Msinet.ocx on the Visual Basic 5.0 CD.


STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.


MORE INFORMATION

Steps to Reproduce Behavior

  1. Start a new Standard EXE project. Form1 is added by default.


  2. From the Project menu, click Components, and select the Internet Transfer Control 5.0 into the project if it is not already loaded.


  3. Place an Internet Transfer Control 5.0 (Inet1) on Form1 and add the following code:
    
          Private Sub Inet1_StateChanged(ByVal State As Integer)
           Dim vtData As Variant ' Data variable.
    
           Select Case State
           ' ... Other cases not shown.
           Case icError ' 11
               ' In case of error, return ResponseCode and
    
          ' ResponseInfo.
               vtData = Inet1.ResponseCode & ":" & _
               Inet1.ResponseInfo
    
           Case icResponseCompleted  ' 12
               Dim strData As String: strData = ""
               Dim bDone As Boolean: bDone = False
    
               ' Get first chunk.
               vtData = Inet1.GetChunk(1024, icString)
               DoEvents
    
               Do While Not bDone
    
                   strData = strData & vtData
                   ' Get next chunk.
                   vtData = Inet1.GetChunk(1024, icString)
                   DoEvents
    
                   If Len(vtData) = 0 Then
                       bDone = True
                   End If
               Loop
    
              MsgBox strData
           End Select
          End Sub
     


  4. Place a CommandButton (Command1) on Form1 and add the following code:
    
          Private Sub Command1_Click()
              Inet1.UserName = "Username"
              Inet1.Password = "Password"
              Inet1.URL = "ftp://YourFTPServer"
    
              Inet1.Execute , "DIR"
         End Sub
     


  5. From the Run menu, click Start (ALT, R, S) or press the F5 key to run the program. Click the Command1 button, and you will see error described above.


NOTE: The above sample demonstrates the problem with FTP, but it also occurs for the HTTP protocol

Additional query words:

Keywords : kbVBp500 PrgCtrlsStd
Version : WINDOWS:5.0,97sp2
Platform : WINDOWS
Issue type : kbbug


Last Reviewed: September 23, 1999
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