with nods to EmperorXLII and his work for xUnit
and of cource, to the whole xUnit's team, too :)
There's an "unknown incompatibility" problem mentioned in the comments, which forced the original author of "VSTS Test Runner for xUnit" to add the XUnitForceLegacyCallback hack was quite tough to trace. It took me more than 8 hours to diagnose and fix, so if you, dear reader, are here already, please at least skim through it and either remember what IMessageSink really is, or write down somewhere the helpful external links :))
