Reference for unit 'Dos': Types

`ComStr`		Command-line string type
`DateTime`		Record containing a date/time description
`DirStr`		Full directory string type.
`ExtStr`		Filename extension string type.
`FileRec`		Record describing an untyped file
`NameStr`		Fill filename string type.
`PathStr`		Full File path string type.
`Registers`		Record to keep CPU registers for MSDos call. Unused.
`SearchRec`		File Search Results record
`TextBuf`		Type for default buffer in TextRec
`TextRec`		Record describing Text files
`TLineEndStr`		End-of-line string