XPcountry()
  Get/Set the current DOS country setting
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  Function:    XPcountry()

  Syntax:      XPcountry([nNewCountry]) --> nCurrentCountry

  Arguments:   nNewCountry specifies the evt. new country to set,
               the return value is the current value. So you should check
               for support for your country with the return value.

  Returns:     The current country setting.

               The country number is generally the telephone international
               acces code, so 32 for intance, is Belgium. Refer to your DOS
               manual (or the phone manual) for more information.

               Note that when you don't load NLSFUNC, generally only your
               current country is supported, often, it is enough.

  Usage:       XPcountry(31)        // Set the Country 1st
               if XPcountry() <> 31
                        ? 'Netherlands Country Info not available!'
               end