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  Description:  IOCTL: Change Sharing Retry Count      DOS 3.1 Only
 
  Sets the number of times MS-DOS retries a disk operation after a failure
  caused by a file-sharing violation before it returns an error to the re-
  questing process. This subfunction is not available unless the file-shar-
  ing module (SHARE.EXE) is loaded.
 
  Input                                       Output
  ════════════════════════════════            ════════════════════════════
  AH=44H                                      If function successful
  AL=0BH                                      Carry flag=clear
  CX=delays per retry (default=1)             If function unsuccessful
  DX=number of retries (default=3)            Carry flag=set
                                              AX=error code
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