kbsoftware, this is actually freeware. It requires no money nor does it stop working. The 3.x version has added a bunch of new features to the freeware version and it has the paid-for features visible but disabled.
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According to the lphant forums, the recent versions (1.09, maybe 1.10) contain adware bundled with the installer. Check your Add/Remove control panel if you install this program.
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It would be nice if there was a description column that listed any known info about what the plugin does and what might stop working if it is disabled.
Also, check for Read/Write privs before starting...
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