DOS Fn 6602H: Activate Code Page

                                                         Compatibility: 3.3+ 
 Expects: AX    6602H
          BX    code page to activate
 Returns: AX    error code if CF is set to CY
    Info: Activates a specified global code page (character set).

          Before a code page can be selected for a device, the device must
          be prepared for code page switching, including:

          ■ DEVICE= in CONFIG.SYS to install a code-page aware device

          ■ The Nlsfunc DOS command must be memory resident.

          ■ The Mode CP Prep command used to prepare the device (or a
            series of IOCTL fn calls that prepare the driver).

          The requested code page must be compatible with the country code
          specified in COUNTRY= command in CONFIG.SYS.

          DOS must be able to locate COUNTRY.SYS (a file that contains all
          kinds of NLS info).  It will look in the root of the boot drive
          and perhaps elsewhere.

See Also: fn 6601H (query active code page)
          National Language Support
          DOS Functions