Nothing is certain but death and taxes
You should hope that it will work for ever.
Right now, there is nothing in MS BoL which suggests that they might change this bahaviour:
http://msdn.microsoft.com/en-us//library/ms177523.aspx
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"The only true wisdom is in knowing you know nothing"
"O skol'ko nam otkrytiy chudnyh prevnosit microsofta duh!":-D
(So many miracle inventions provided by MS to us...)
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