TDriveType = (
  dtUnknown,
  dtNoDrive,
  dtFloppy,
  dtFixed,
  dtNetwork,
  dtCDROM,
  dtRAM
);

enum TDriveType {
  dtUnknown,
  dtNoDrive,
  dtFloppy,
  dtFixed,
  dtNetwork,
  dtCDROM,
  dtRAM
};