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File system tunneling is discussed in the answers to this question: Incorrect file creation date in Windows XP/Vista

Does any recent software depend on file system tunneling to maintain the creation date of files that it updates? (I'm guessing that the answer is "no"; that it was DOS-era programs that deleted the existing file and created a new one with the same name as the old one).

Are there any other risks to disabling file system tunneling (using HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\MaximumTunnelEntries)?

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What problem do you want to solve with disabling this feature? If none, simply leave it at the default. –  SvW Nov 23 '12 at 6:47
    
The problem that I want to solve is that I move a file, then create a new file with the same name as the old one, and it gets the old file's create date. Since I do have a real problem that I want to solve, I don't want to leave it at the default. Back to my original question; do you have an answer? –  Nor Nov 24 '12 at 4:28
    
It's pretty much normal practice to use a rename/write/delete or write/overwrite pattern when saving existing files. Otherwise, if the save is interrupted for any reason, both the old and new copies of the file are lost. Ideally, the programmer would manipulate the file creation date explicitly, but since the OS takes care of it for you I wouldn't bet on this being very common. –  Harry Johnston Nov 28 '12 at 4:15
    
How are you creating the new file? It may be possible to work around the problem rather than reconfiguring the operating system. –  Harry Johnston Nov 28 '12 at 4:22
    
Thanks Harry. Of course it would be normal practice -- my brain wasn't fully engaged when I assumed that only older programs would use that technique. –  Nor Nov 28 '12 at 23:37

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