Event ID: 5337

Este error se presento en un formulario infopath que es usado como Form de Instanciacion de un WorkFlow.

Event Type: Warning
Event Source: Office SharePoint Server
Event Category: Forms Services Runtime - Business Logic
Event ID: 5337
Date:  7/16/2009
Time:  4:22:11 PM
User:  N/A
Computer: PC-Marco
Description:
Business logic failed due to an exception. (User: Dominio\mdiaz, Form Name: SCWFPuestoAprobacionInstantiationForm, IP: , Request: http://Server2003/_layouts/IniWrkflIP.aspx?List=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx&ID=xx&TemplateID={xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx}&Source=http://Server2003/Site/Lists/Lista/AllItems.aspx, Form ID: urn:schemas-microsoft-com:office:infopath:SCWFPuestoAprobacionInstantiationForm:-myXSD-2009-06-25T14-14-04, Type: SecurityException, Exception Message: Request for the permission of type 'Microsoft.SharePoint.Security.SharePointPermission, Microsoft.SharePoint.Security, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' failed.)

Solucion:
Deben de configurarse el formulario como FULL TRUST, tal como se muestra en la imagen