On a Windows platforms, ColdFusion runs under the host System account by default. However, ColdFusion application pages may not have the access rights required to interact with other resources, such as remote data sources, other application pages, and COM objects. Therefore, you must run ColdFusion under a specific account that provides the necessary access rights.
Click Start > Control Pane > Administrative Tools > Services.
Select the ColdFusion 9 Application Server and click Start.
In the Logon As frame, select the This Account option, and enter the appropriate account user name and password information.
Click OK to save the information.
Click Close to close the Services window.
Restart the service for the changes to take effect.