This error occurs when the RequestTrace object is freed by the
GarbageCollector (GC) instead of the the program explicitly calling the
RequestTrace object's Dispose() method.

The timing of the RequestTrace starts when RequestTrace object is created
and ends when the object is Dispose().
A RequestTrace object is designed to only be used on the same thread of
execution that it was created on.

For this reason, Im a little concerned whether the Page_Load (where is
sounds like the RequestTrace object is created) is on the same thread of
execution as the page Dispose() (where I assume you manually are calling
requestTrace.Dispose())

You might want to perform your own timing (i.e. startTime = DateTime.Now in
Page_Load, and endTime = DateTime.Now; diff = endTime - startTime ) then
then just raise a message with the time in the page Dispose().

Hope this helps

Mike

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