How to Play DVDs on Your XP Computer Bought and installed a new DVD player but can't play DVD movies? That's because Windows XP doesn't come with built-in DVD decoder software. Some OEMs install this software on the machines they sell, however. Here's how you can tell whether your copy of XP has DVD decoder software installed: Click Start | Run and type cmd in the Run box to bring up a command window. At the command prompt, type dvdupgrd /detect. Press Enter. A dialog box will appear, either telling you that no decoders are found, or telling you what DVD decoder was detected. If you need to install a DVD decoder, you can buy a third-party product. The Microsoft Web site lists decoders that are compatible with Windows XP at: http://www.winxpnews.com/rd/rd.cfm?id=040608HT-Play_DVDs posted by Yee 9:31 PM . . .
