DOS Fn 5f03H: Make Network Connection

                                                         Compatibility: 3.1+ 
 Expects: AX    5f03H
          BL    03H = it's a printer (DS:SI name is "PRN", "LPT1", etc.)
                04H = it's a drive   (DS:SI name is "A:", "B:", etc.)
          CX    user value--arbitrary code returned by fn 5f02H
          DS:SI addr of ASCIIZ▲ device name
          ES:DI addr of two ASCIIZ strings (network name and password)
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 Returns: AX    error code if CF is set to CY
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    Info: Creates a connection to a network device or drive by associating
          a local drive ID or device name with a network device.

          The value of CX is arbitrary and is not used by DOS.  It may be
          used by applications as a way to mark the device for internal
          processing.  Its value is returned by fn 5f02H.

          BL=03H connects a network printer
          ■ Set DS:SI to point to a printer name such as "LPT1",0
          ■ Set ES:DI to point to the name of a printer on the network
            followed by a password.  For instance,

              "\\SERVER\HP4",0,"MYPASSWORD",0

            If no password is needed, you must append a null string to the
            end of the network device name; e.g., "\\SERVER\HP4",0,0

          BL=04H connects a network drive
          ■ Set DS:SI to point to a local drive name such as "E:",0 or a
            null string (beginning with a 0).  In that case, DOS attempts
            to provide access to the network without usurping a drive ID.
          ■ Set ES:DI to point to the name of a network drive name,
            followed by a password.  For instance,

              "\\SERVER\FILES",0,"MYPASSWORD",0

            If no password is needed, you must append a null string to the
            end of the network device name; e.g., "\\SERVER\FILES",0,0

   Notes: ■ Network redirection is normally handled by system-level
            utilities rather than application programs.

          ■ The value in CX is stored in the CurDirRec for a drive.

See Also: Network Functions
          DOS Functions
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