KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q128086: PRB: Failing to Initialize OLE Generates Out of Memory Error

Article: Q128086
Product(s): Microsoft C Compiler
Version(s): winnt:2.0,2.1,4.0,4.1,5.0,6.0
Operating System(s): 
Keyword(s): kbole kbMFC kbVC150 kbVC151 kbVC152 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbVS600 kbG
Last Modified: 06-MAY-2001

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

- The Microsoft Foundation Classes (MFC), used with:
   - Microsoft Visual C++ for Windows, 16-bit edition, versions 1.5, 1.51, 1.52 
   - Microsoft Visual C++, 32-bit Editions, versions 2.0, 2.1, 4.0, 4.1 
   - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0 
   - Microsoft Visual C++, 32-bit Professional Edition, version 5.0 
   - Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 
   - Microsoft Visual C++, 32-bit Professional Edition, version 6.0 
   - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

If the OLE .DLL files are not initialized with a call to AfxOleInit(),
subsequent OLE calls will fail. For 32-bit MFC applications, debug output sent
to a debugging window may show these errors:

  Throwing exception of type COleException
  sCode = 0x8007000E E_OUTOFMEMORY

  - or -

  sCode = 0x80030008 STG_E_INSUFFICIENTMEMORY

For 16-bit MFC applications, debug output may show:

  Throwing exception of type COleException
  sCode = 0x80000002 E_OUTOFMEMORY

  - or -

  sCode = 0x80030008 STG_E_INSUFFICIENTMEMORY

RESOLUTION
==========

AfxOleInit() calls OleInitialize(LPMALLOC), which sets the task memory allocator
used by OLE. If this is not done, OLE cannot perform memory allocations and any
OLE calls will fail. Placing a call to AfxOleInit() in the InitInstance() of an
MFC application will fix this problem. The first few lines from the
InitInstance() of HIERSVR (MFC OLE sample provided with Visual C++) below, shows
the proper syntax for calling AfxOleInit().

Sample Code
-----------

     /* Compile options needed: standard MFC project
     */ 
     
     BOOL CServerApp::InitInstance()
     {
         // OLE 2.0 initialization
         if (!AfxOleInit())
         {
             AfxMessageBox(IDP_OLE_INIT_FAILED);
             return FALSE;
         }
     ... function continues ....

STATUS
======

This behavior is by design.

Additional query words:

======================================================================
Keywords          : kbole kbMFC kbVC150 kbVC151 kbVC152 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbVS600 kbGrpDSMFCATL 
Technology        : kbAudDeveloper kbMFC
Version           : winnt:2.0,2.1,4.0,4.1,5.0,6.0
Hardware          : x86
Issue type        : kbprb

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

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.