Running WebInspect as Administrator

Running WebInspect as Windows Administrator is fine for most of our installations. However we have hired a contractor to perform some WebInspect scans and we have a corporate policy against allowing contractors to use Administrator accounts. Is there any documentation that exactly defines what admin privileges WebInspect requires? If so we might be able to setup a restricted admin account to allow the contractor to run WebInspect (or via a runas) but do little else. Thanks in advance.