https://blogs.msdn.microsoft.com/oldnewthing/20050715-14/?p=34923/ "One of the file system features you may find yourself surprised by is tunneling, wherein the creation timestamp and short/long names of a file are taken from a file that existed in the directory previously"

Re: How to change file creation date? 

use Win32API::File::Time qw{:win};

my ($fwatime, $fwmtime, $fwctime) = GetFileTime ($fromfn);
SetFileTime ($tofn, $fwatime, $fwmtime, $fwctime);

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In reply to Re: Unlink+Open: File creation timestamp problem by huck
in thread Unlink+Open: File creation timestamp problem by Rantanplan

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