Can "System Restore Points" be locked?

I know that a system restore point is far from an everything;
nevertheless, they do seem a useful concept. However, like the ERU/ERD
ones in Windows 95 (works fine in 98/Me too), I'd like to be able to
keep the odd one; at present SRPs seem to be like the replacement to
ERU/ERD that came with '98, i. e. they go into a FIFO buffer: since the
system makes SRPs quite frequently, the oldest isn't that old. I've just
installed CCleaner, which has a useful "manage your CRPs" tool (actually
all it lets you do is remove them, but it's useful as a way of seeing
what you've got), and I see my oldest is only just over a month old, and
there are only ones made by my system and a utility there, none that
I've made myself.

Can it be done (marking one as "keep")? If not, can they be moved to a
safe place, and moved back when needed? (What form do they take?
Presumably not registry entries! Though how they're indexed I rather
fear _is_ in the registry.)
--
J. P. Gilliver. UMRA: 1960/1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf
** http://www.soft255.demon.co.uk/G6JPG-PC/JPGminPC.htm for ludicrously
outdated thoughts on PCs. **

"Most of us, when all is said and done, like what we like and make up reasons
for it afterwards." - Soren F. Petersen