How To Troubleshoot "ADODB.Connection" Error 800a0bb9 from Recordset DTC

ADODB.Connection error '800a0bb9'

The application is using arguments that are of the wrong type, are out of acceptable range, or are in conflict with one another.

This error often occurs because the Global.asa file does not fire. As a result, the Application and Session variables that are initialized in the Session_OnStart and Application_OnStart events are not created. The most common cause for Global.asa not firing is if the virtual folder that contains the file is not set up as an application.