Note that there can also be registry keys with \0 embedded in them which makes it impossible to find using the Win32 API (but can be found via the native api). Good information, as well as a demonstration program, here:
http://www.sysinternals.com/Information/TipsAndTrivia.html#HiddenKeys

In reply to Re: Finding Hidden Keys in Your Windows Registry by davidrw
in thread Finding Hidden Keys in Your Windows Registry by idsfa

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