Hi, I'm trying to add the CrmService to a windows application, i'm getting the following error: Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. 1- how to solve this error? 2- i'm doing this in order to put the code that will allow me to pass information to CRM 4.0 and create an account. So should i create a windows application or web application for this code? (it's the first time i use CRM webservices) Any help concerning this will be appreciated.