DOCUMENT:Q171548  01-DEC-1997  [vbwin]
TITLE   :FIX: Binary-Compatible Server Causes VB to Hang in IDE
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:5.0; WINNT:97,97sp2
OPER/SYS:WINDOWS winnt
KEYWORDS:vb5all VBKBAX VBKBAXInet VBKBComp VBKBCtrl VBKBInet VS97FixlistSP3 VB5FixListSP3

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The information in this article applies to:

 - Microsoft Visual Basic Control Creation, Learning, Professional, and
   Enterprise Editions for Windows, version 5.0
 - Microsoft Visual Studio versions 97, 97sp2
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SYMPTOMS
========

After adding functionality and re-compiling a server application (EXE, DLL,
or OCX) with Binary compatibility set several times with Visual Studio 97
Service Pack 2, the Visual Basic IDE could hang.

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 3.

For more information, please see the following article in the Microsoft
Knowledge Base:

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

For a list of the Visual Basic 5.0 bugs that were fixed in the Visual
Studio 97 Service Pack 3, please see the following article in the Microsoft
Knowledge Base:

   ARTICLE-ID: Q175450
   TITLE     : INFO: Visual Basic 5.0 Fixes in Visual Studio 97
               Service Pack 3

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

If you have an ActiveX project built with binary compatibility set,
you may experience some problems. The problems caused by this bug are
difficult to reproduce consistently. This article offers just one way to
reproduce this behavior, so be aware that the IDE may hang under other
conditions when your project is using in Binary compatibility switch.

Steps to Reproduce Behavior
----------------------------

1. Create an ActiveX project with two classes and add some methods to both
   classes. Compile this ActiveX project.

2. Add a method to Class1(the first class listed in .VBP file).

3. Set binary compatibility to the ActiveX project you just generated.
   Compile this ActiveX project again.

4. Set binary compatibility to this new generated ActiveX project.

5. Press the F5 key to run the project and note that the IDE hangs.

REFERENCES
==========

   ARTICLE-ID: Q171550
   TITLE     : FIX: Recompiling With SP2 Breaks Binary Compatibility
======================================================================
Keywords          : vb5all VBKBAX VBKBAXInet VBKBComp VBKBCtrl VBKBInet VS97FixlistSP3 VB5FixListSP3
Technology        : kbInetDev
Version           : WINDOWS:5.0; WINNT:97,97sp2
Platform          : WINDOWS winnt
Issue type        : kbbug
Solution Type     : kbfix kbservicepack

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Copyright Microsoft Corporation 1997.