Answer / satheesh

CSingleDocTemplete defines a document template for SDI
applications. A document templet defines the relationship
between three types of classes, those are document, view
and frame window.

CSingleDocTemplete object can be create only one at a time.
So SDI application allows to open only one document at a
time.

Just call CSingleDocTemplete constructor remaining will be
handeled by the framework internally.

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