The answer is in here:
http://msdn.microsoft.com/en-us/library/ms190488.aspx
DBCC SHRINKDATABASE operations can be stopped at any point in the process, and any completed work is retained.
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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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