the web application key. Each web application can an should have a key if it must comunicate with an web application via SendAPMessage. The key can be any string, should be unique and put in a file named yourscriptname.key.appkey or in a file named generic.appkey for all the scripts in the directory
Description:
Set the current Concept Applicaton as a parent for a given web application idetified by key. In the child Web Application, a call to GetParentAPID will return this application APID. See RemoveWebChild.