Paetsch, 27, split the 2009-10 season with Columbus and Buffalo. He registered 2 points (1-1-2) in 11 games with Buffalo and 6 penalty minutes in 10 games with Columbus. In 167 NHL games he has totalled 7 goals and 42 points, with 114 penalty minutes and a plus-12 rating.
Zimmerman, 23, finished the 2009-10 season with nine points (2-7-9) and 105 penalty minutes in 72 games played with the San Antonio Rampage of the AHL.
Vancouver also added defenseman Ryan Parent in a trade Wednesday with Nashville for Shane O'Brien.
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