I think it has to be VT_ARRAY|VT_BSTR|VT_BYREF. I believe you'll need to do something like:

my $array = Variant(VT_ARRAY|VT_BSTR|VT_BYREF, $length);
$obj->getMemberNames( $array);
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Jenda
Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
   -- Rick Osborne

Edit by castaway: Closed small tag in signature