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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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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     This directive is reserved for use with add-on products from
     Micro Focus. Do not change its setting unless you have an
     appropriate add-on product.
 
     FCDREG causes a special register, FH--FCD, to be created for each
     File Definition (FD) in the program. This register points to the
     File Control Description (FCD) for the file. Thus the program can
     read or amend information in the FCD.
 
     For each indexed file, an additional special register, FH--KEYDEF,
     is created. This register points to the Key Definitions Block for
     the file.
 
     The layout of the FCD and the Key Definitions Block is given in
     the documentation for the appropriate add-on product.
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