A callback function for computing the variance puts the computed value 
into the same field as a conformance, so make sure to copy the value 
into pCount before returning from ComputeConformanceOrVariance.

their names make more sense.

trouble than it's worth.

when using NtFreeVirtualMemory with the MEM_SYSTEM flag.

It increases the latency on completing the COM call and could result in 
the COM call never completing in some circumstances.

since dispinterfaces don't have the FDISPATCHABLE flag.

dialog title to allow different word orders.