The LockAllAttributesExcept property allows you to lock all the attributes at once, with the exception of the one you specify. To do that, you use the Contains method, as explained in the Example section.
The LockAllAttributesExcept property allows you to prevent the child configuration elements of the element to which you apply the rule from being modified. Use the LockItem property if you want to put a general lock on the parent element itself and its child elements.
Notes to Implementers
If you use the LockAllAttributesExcept and LockAttributes properties at the same time, the most restrictive rule applies.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2