PRB: VB Component Not Marked Apartment Produces ASP 0115 Error

• Active Server Pages
• Microsoft Visual Studio 97
• Microsoft Visual Basic Standard, Professional, and Enterprise Editions, 32-bit only, for Windows, version 5.0

SYMPTOMS

When instantiating an ActiveX dynamic-link library (DLL) created with Visual Basic 5.0 within an Active Server Page using the Server.CreateObject, the following error may occur:

Error 'ASP 0115'
Unexpected error

/<VirtualRoot>/<ASPPage>

RESOLUTION

Apply Visual Studio 97 Service Pack 3 or later to Visual Basic 5.0 and recompile the ActiveX DLL.

NOTE: Applying the latest version of the service pack will also apply fixes from the previous versions of the service pack.

Use the following steps to recompile the ActiveX DLL in Visual Basic with the latest service pack:

1. Open the ActiveX DLL project.



2. From the menu, select Project and go into <ProjectName> Properties where <ProjectName> is the name of the ActiveX DLL project.



3. In the <ProjectName> - Project Properties dialog box, click the General tab.



4. Go to the Threading Model frame and choose Apartment Threaded in the combo box. Click OK.



5. Recompile ActiveX DLL component and apply it back to the Web server.



6. Register the ActiveX DLL component on the Web server using RegSvr32.exe, if necessary.

REFERENCES

For more information on threading support in Internet Information Server 4.0, refer to the following paper "Improving the Performance of Data Access Components with IIS 4.0," which is available at http://www.microsoft.com/.

For more information on apartment-model threading articles, refer to the following Microsoft Developers Network site:

http://premium.microsoft.com/msdn/library/

Additional query words: viasp vb ActiveX dll asp

Keywords          : kbASP kbCOMt kbJScript kbScript kbVBScript kbGrpASP 
Version           : WINDOWS:5.0,97; winnt:
Platform          : WINDOWS winnt 
Issue type        : kbprb 

Last Reviewed: May 24, 1999