A MultiUse class can supply more than one instance of itself per copy of its component.
A single instance of a COM component can create multiple instances of a MultiUse class. The first
request for a class instance starts the COM component. All subsequent requests are serviced by the already
running server. If a client application requests several instances of a ClassA, for example, one
server creates all instances of ClassA.
Using GlobalMultiUse Instancing to Avoid Explicit Object Creation
All that has been said about GlobalSingleUse Instancing applies to GlobalMultiUse
as well. The difference, of course, is that the latter provides a MultiUse object
rather than a SingleUse object.
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