File-name component string length constants  (WinDos unit and Dos unit)

 These constants are the maximum file-name component string lengths used by
 the FileSearch and FileExpand functions.

   WinDos Constant   Value
   fsPathName         79
   fsDirectory        67
   fsFileName          8
   fsExtension         4

   DosConstant     Value
   ComStr          string [127]
   PathStr         string [79}
   fsDirectory     string [67]
   fsFileName      string [8]
   fsExtension     string [4]