rem: DOSBase = OpenLibrary( "dos.library", 37 );
add: DOSBase = (struct DosLibrary*) OpenLibrary( "dos.library", 37 );
context: DriverInit( struct DriverBase* AHIsubBase ){  struct DeviceBase* DeviceBase = (struct DeviceBase*) AHIsubBase;  DOSBase = OpenLibrary( "dos.library", 37 );  if( DOSBase == NULL )  {    Req( "Unable to open 'dos.library' version 37.\n" );    return FALSE;  }  return TRUE;}