Used for both VST and AU. In AU it is namespaced by the manufacturer. In VST it should be unique. While it seems no VST host use this ID as a unique way to identify a plugin, common wisdom is to try to get a sufficiently random one.
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Used for both VST and AU. In AU it is namespaced by the manufacturer. In VST it should be unique. While it seems no VST host use this ID as a unique way to identify a plugin, common wisdom is to try to get a sufficiently random one.