PowerCreator VGAPlayer is a plug-in for the Power Creator video capture software. When a browser re-visits the Web site homepage, the browser will be automatically prompted to install the new version VGAPlayer. There exists a control file VGAPlayer.cab in each courseware directory. So when the control needs to upgrade, the easiest way is to regenerate this file under courseware directory. But if there are a lot of coursewares in the site, this way is hard to make it.
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