http://technet.microsoft.com/en-us/sysinternals/bb897448


Usage: regdelnull <path> [-s]
-s	Recurse into subkeys.


Here's an example of RegDelNull when used on a system on which the RegHide sample program has created a null-embedded key:


C:\>regdelnull hklm -sRegDelNull v1.10 - Delete Registry keys with embedded Nulls

Copyright (C) 2005-2006 Mark Russinovich

Sysinternals - www.sysinternals.com

Null-embedded key (Nulls are replaced by '*'):

HKLM\SOFTWARE\Systems Internals\Can't touch me!*

Delete (y/n) y

Scan complete.