DOCUMENT:Q189400  11-AUG-1998  [vbwin]
TITLE   :BUG: VBComponents Add Method Cannot Add a Form
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:5.0,6.0
OPER/SYS:WINDOWS
KEYWORDS:

======================================================================
---------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Learning, Professional, and Enterprise Editions
   for Windows, versions 5.0, 6.0
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SYMPTOMS
========

When attempting to add a Form to a Visual Basic project through the
IDTExtensibility model, you receive the following error:

   Runtime error '-2147467259 (800004005)':
   System Error &h80004005(-2147467259). Unspecified error

CAUSE
=====

This error can occur if you use the Add method of the VBComponents object
and pass vbext_ct_MSForm as the component type.

vbext_ct_MSForm is not a valid component type; it corresponds to Form3
designers, which Visual Basic does not support.

RESOLUTION
==========

Use the VBComponents AddFromTemplate method. See the MORE INFORMATION
Section of this article for additional information.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products
listed at the beginning of this article. We are researching this
bug and will post new information here in the Microsoft Knowledge
Base as it becomes available.

MORE INFORMATION
================

Steps to Reproduce Problem
--------------------------

1. Start a New Add-In Project in Visual Basic. A form "frmAddIn" will be
   created automatically, with two command buttons, OK and Cancel.

2. Add the following line to the Click event of the OKButton:

      VBInstance.VBProjects(1).VBComponents.Add (vbext_ct_MSForm)

3. If using Visual Basic 5.0, type "ADDTOINI" in the Immediate (debug)
   window and press the ENTER key. This step is not necessary if you are
   using Visual Basic 6.0.

4. Press the F5 key to run the project.

5. Start another instance of Visual Basic with a new standard EXE project.

6. Under the Add-Ins menu, select Add-In Manager, and then select
   "My AddIn" from the list.

7. Select the "My AddIn" item from the Add-Ins menu.

8. Click OK on the Add-In Form. You will get the error:

      Run-time error '-2147467259 (800004005)':
      System Error &h80004005(-2147467259).  Unspecified error.

Steps To Work Around the Problem
--------------------------------

1. Add a new form to the add-in project and save it in the Template
   folder under the Visual Basic folder as Form1.frm. (For example,
   C:\Program Files\DevStudio\VB\Template), and then remove the
   form from the project.

2. Change the code in the OKButton_Click event in step 2 above to the
   following code shown below.

      Private Sub OKButton_Click()
        VBInstance.VBProjects(1).VBComponents.AddFromTemplate _
        ("C:\Program Files\DevStudio\VB\Template\Form1.frm")
      End Sub

   NOTE: Modify the path as appropriate for your environment. In Visual
   Basic 5.0, the default Visual Basic installation path is C:\Program
   Files\DevStudio\VB. In Visual Basic 6.0, the default path is C:\Program
   Files\Microsoft Visual Studio\VB98.

3. Repeat steps 3 through 8 in the "Steps to Reproduce the Problem"
   section. This time a form should be added to your project each time
   you click OK.

REFERENCES
==========

Books Online for Microsoft Visual Basic, versions 5.0 and 6.0

Additional query words: kbAddIn kbDSupport KBdSS kbVBp500bug
kbVBp600bug kbVBp
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Version           : WINDOWS:5.0,6.0
Platform          : WINDOWS
Issue type        : kbbug

=============================================================================

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Copyright Microsoft Corporation 1998.