Which XML parser do the built-in providers in Security Manager use?
For which XML parser should I format code when creating a custom provider?
Security Manager 5.X
Security Manager uses the Microsoft XML parser included with Internet Explorer version 5.5.
if you are writing a custom provider that requires XML parsing, format your code for the parser in Internet Explorer version 5.5.
Security Manager 5.5 can use the XML parser in Internet Explorer version 6.0