fix for GH issue 450

mikeblome · mikeblome · commit 7c2985f1bf2c · 2018-11-11T20:27:47.000-08:00
diff --git a/docs/windows/asyncbase-class.md b/docs/windows/asyncbase-class.md
@@ -449,7 +449,7 @@ S_OK if the operation starts or is already started; otherwise, E_ILLEGAL_STATE_C
 
 ### Remarks
 
-`Start()` is a default implementation of `IAsyncInfo::Start`, and does no actual work. To actually start an asynchronous operation, override the `OnStart()` pure virtual method.
+`Start()` is a protected method that is not externally visible because async operations "hot start" before returning to the caller.
 
 ## <a name="trytransitiontocompleted"></a>AsyncBase::TryTransitionToCompleted
 
