Arbortext Command Language > set Command Options > set prefersystemidxmlcatalogs
  
set prefersystemidxmlcatalogs
set prefersystemidxmlcatalogs= { on | off}
This command determines whether the system identifier is given priority when searching an XML catalog file to resolve an entity (if set to on). The default is off, meaning that the public identifier and entity name are preferred over the system identifier.
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If you set this preference to prefer system IDs, or set prefer=”system” in your catalogs, be sure to have system entries map all http URIs to local files. For example, a document type declaration such as “<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">” would cause a request to be sent to the W3C servers if no system entry was provided for the URI.