I represent a DOS or Windows FileDirectory.

	path access
	driveName fullPathFor:

	as yet unclassified	top
	checkName:fixErrors: Check if the file name contains any invalid characters
	setPathName: Ensure pathString is absolute - relative directories aren't supported on all platforms.

	path access	top
	driveName return a possible drive letter and colon at the start of a Path name, empty string otherwise
	fullPathFor: Return the fully-qualified path name for the given file.

	platform specific	top
	isCaseSensitive Return true if file names are treated case sensitive
	isDrive:
	maxFileNameLength
	pathNameDelimiter return the active directory class's directory seperator character
	splitName:to: Take the file name and convert it to the path name of a directory and a local file name within that directory. FileName must be of the form: <dirPath><delimiter><localName>, where <dirPath><delimiter> is optional. The <dirPath> part may contain delimiters.