This article was previously published under Q295745
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Non-Plug and Play (PnP) devices are no longer supported in Windows XP. This may include modems and Network Interface Cards (NIC).
In addition, if a modem that is slower than 28.8 kilobits per second (Kbps), that modem is not recognized automatically by Microsoft Windows XP. The Control Panel Add/Remove Hardware tool does not recognize the modem.
Non-Plug and Play (PnP) devices are no longer supported.
For modems slower than 28.8 kilobits, native drivers are not included with Windows XP.
If the device is Plug-and-Play capable, consult the manufacturer about how to put the device into the appropriate mode.
To work around non-detected modems, download the appropriate drivers from the modem manufacturer and manually install them according to manufacturers directions.