It can be a string4 containing the application signature, a binary value obtained by calling sys.browseNetwork or a string containing a valid network address.
Action Instructs the application identified by appID to close the objects specified by obj.
If the object is a document with unsaved changes, the changes will not be saved. This verb is only implemented in the Mac OS version of Frontier. This is a low-level verb intended to be used only with applications that support the Core suite of Apple Events. Typically, an application's verb table will include high-level verbs that correspond to all of the events that it supports, so scripts should not have to call the core verbs directly. When closing a document, be sure to save changes beforehand if desired.