At this point you already have your answer, but I wanted to point out something that would have helped you find the answer faster: check your s/// call for success.
$a =~ s/\Q$$NETOBJ.// or die "$a is not right";

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UPDATE: Abigail points out that the \Q won't prevent variable interpretation (damn) but that wasn't my point. My point was that you can only be sure a regex matched something if you check. To make Abigail happy I give you:
$a =~ s/\$\$NETOBJ\.// or die "$a is not right";

[download]

In reply to RE: Need help with s/// by Adam
in thread Need help with s/// by Tii

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