Summary

When you are submitting information through the Agenda Manager website, you may receive the following error message:

Response object error 'ASP 0156 : 8004005'
Header Error
/AMServer/login.inc, line 4

The HTTP headers are already written to the client browser. Any HTTP header modifications must be made before writing page content.

Cause

Agenda Manager must be configured to buffer all output before sending that output to the browser. By default, Agenda Manager is configured for buffering. If the setting has been changed, re-enable output buffering.

Resolution

Use the IIS MMC snap-in to enable buffering.

To enable buffering

1. Load the IIS MMC snap-in. It can be opened from Administrative Tools in the Control Panel.
2. Select the Agenda Manager Server virtual directory. By default, Agenda Manager creates the AMServer virtual directory.
3. From the Action menu, click Properties.
4. In the Properties dialog box, on the Virtual Directory tab, click Configuration.
5. In the Application Configuration dialog box, click the Options tab.
6. Select the Enable buffering check box.
7. Click OK to save your change and close the Application Configuration dialog box.
8. Click OK to close the AMServer Properties dialog box.

More Information

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

PRB: ASP 0156: 80004005 Header Error