2.1.2 [XML] Section 2.8, Prolog and Document Type Declaration

V0002:

The specification states:

 Well-formedness constraint: PEs in Internal Subset
 In the internal DTD subset, parameter-entity references MUST NOT occur within 
 markup declarations; they may occur where markup declarations can occur. (This does 
 not apply to references that occur in external parameter entities or to the 
 external subset.)

MSXML3 and MSXML6

In an internal DTD subset, parameter-entity references can occur in processing instructions, notation declarations, and comments but not in entity declarations, element-type declarations, or attribute-list declarations. Parameter-entity references are not recognized in comment declarations.

Show: