2.2.4 [DOM Level 1] Section 2.1, Introduction
C0034:
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This section extends the Level 1 Core API to describe objects and methods specific to HTML documents. In general, the functionality needed to manipulate hierarchical document structures, elements, and attributes will be found in the core section; functionality that depends on the specific elements defined in HTML will be found in this section.
MSXML3 and MSXML6
None of the interfaces in section 2 of the [DOM Level 1] specification are supported.