Style Sheets and Security Settings in XML

We are trying to set the ProhibitDTD property of out XML automation variable to true to allow execution of Embedded scripts in codeunit 403 on Nav 5.0, so that we can allow exection of scripts in order to modify style sheets, however the following code


BlobRec.Note.CREATEOUTSTREAM(OutStream);
FromXML4.save(OutStream);
BlobRec.Note.CREATEINSTREAM(InStream);
ToXML6.setProperty(ProhibitDTD, false); ///This is the code I am referring to
ToXML6.load(InStream);

is giving an error that the ProbitDTD needs to be defined as a global.

Has any one experienced this ???
Has anyone tried to play around with StyleSheets and how do you change the security setting if you want to allow embedded scripts in Navision.


Thank You.