Check for something in both x32 and x64 registries at the same time. If a boolean expression, returns true if the item exists in either registry.
/*Just use this at the end of the expression:*/
of (x32 registries; x64 registries)
/*This is probably a more elegant way to do it, but it's not as simple to type:*/
of (x32 registry; (if exists x64 registry then x64 registry else nothing))