Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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UNLOCK [#]filenumber% [,{record& | [start&] TO end&}]
 
    ■ filenumber%    The number used to open the file.
    ■ record&        The number of the record or byte to be locked.
    ■ start&         The number of the first record or byte to be locked.
    ■ end&           The number of the last record or byte to be locked.
 
See Also    ◄LOCK►     ◄OPEN (File I/O)►