/sys$common/syshlp/HELPLIB.HLB  —  CRTL  Version-Dependency Tables, V8.3 and Higher
    The following additional functions are available on OpenVMS Alpha
    and Integrity servers Version 8.3 and higher:

    crypt       fchmod
    encrypt     lstat
    setkey      readlink
    lchown      symlink
    realpath    unlink
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