Deleting blank event handler from the Registry

When I plug my DV camcorder into the firewire port, a dialogue appears,
giving me various options for capturing the video to the computer. However,
I notice one of these options is blank, apparently left over from the
installation of some trial software. I'd like to clean this blank option
from the registry, but don't know where to look for it. Any help would be
appreciated.

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Michael


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