Re^6: Private temporal files on Windows

You could try to use the technique from FDPasser to pass the filehandle as a string in %ENV to the helper process... But then I guess you could pass the information via %ENV already :-/

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Re^7: Private temporal files on Windows by salva (Canon) on Dec 20, 2014 at 11:10 UTC
Well, that led me into using OpenProcess+DuplicateHandler to get the handler from the perl process into the helper and it works! On the other hand, how secure is that? I guess only processes from the same user would be able to reopen handlers. I will post a link to the code once I clean it.	[reply]