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If you only want to extract the plug-in files without copying them to the Maya directories (e.g. for creating a package or some other form of customized deployment), you can change the autodetected path for the relevant Maya version to point to an empty directory (the directory must exist). You may want to uncheck "Uninstaller" in the Components page, since you probably don't need an uninstaller to be created in this case. Keep in mind though that in order for Maxwell to work in batch render mode with the render.exe utility, the file maxwellRenderer.xml must be copied in the bin\rendererDesc subdirectory of the Maya install path. Maya does not look for renderer description files in standalone packages, so if you want to use that method of deployment you will need to make sure the XML file is copied separately to the correct path.
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