DOCUMENT:Q193087 24-SEP-1998 [vbwin] TITLE :BUG: Cannot Run a Compiled ActiveX DLL From IE PRODUCT :Microsoft Visual Basic for Windows PROD/VER:WINDOWS:4.0,5.0,6.0 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 - Microsoft Internet Explorer (Programming), version 4.0 --------------------------------------------------------------------- SYMPTOMS ======== Internet Explorer (IE) fails to load an ActiveX DLL that is compiled in Microsoft Visual Basic 5.0 or 6.0. CAUSE ===== The Class_Initialize event is not fired correctly. RESOLUTION ========== In Visual Basic 6.0, run the DLL project in the Visual Basic IDE (Integrated Development Environment) before loading it in IE to correct this problem. There is no resolution for a Visual Basic 5.0 project. 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. Create a new ActiveX DLL project in Visual Basic. Class1 is created by default. 2. Add a new form (Form1) to the project. 3. Paste the following code into Class1: Option Explicit Private myform As Form1 Private Sub Class_Initialize() Set myform = New Form1 myform.Visible = True End Sub Private Sub Class_Terminate() Set myform = Nothing End Sub 4. Save the project. 5. Compile the project by selecting Make Project1.dll from the File menu. 6. Select Add-In Manager under Add-Ins and check Visual Basic 6.0 Package and Deployment Wizard (PDW) to load it. 7. Start the PDW by selecting it from the Add-Ins menu. 8. Select Package. In the Package Type screen, select Internet Package and click Next. Follow the PDW to completion. The PDW will create a HTM file for your project in your desired Package directory. 9. Press the F5 key to run the project in the IDE. Select "Wait for component to be created" and click OK. 10. Launch Internet Explorer and browse to the HTM file created in step 8. The form shows up correctly. 11. Close IE and stop the Visual Basic project from running in the IDE. 12. Reopen IE and browse to the HTM file again. The page loads without error, but the form is not created. Additional query words: kbdss kbDSupport kbVBp kbVBp600bug kbVBp500bug kbIE400bug KbWizard kbAddin ====================================================================== Version : WINDOWS:4.0,5.0,6.0 Platform : WINDOWS Issue type : kbbug ============================================================================= 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. Copyright Microsoft Corporation 1998.