Those two updates might actually do something, I did kill about everything what I could without causing problems for normal usage and can't say if it is those patches or my killfrenzy, but that vista machine boots now in 5minutes instead of 10, however I don't have any Acer stuff anymore and I remember that giving bit of problem when need to join new network or so.
But still can't use sidebar as it increases CPU usage by 20%, maybe there is going to be fix for that in future, at least hopefully.
However now I have 650MB in cache so thing actually starts working a bit fluently, still chokes at times, but not so bad as before.
OS is now taking approx 300MB then + what is swapped, compare this to what factory default was, 700MB and it is bit of improvement...
BTW, killed Ati Catalyst Control center too, whopping 100MB just because user might go to driver settings some day and better load it fast by keeping whole bloatware in memory.
Also I did disable lot of windows services, still thinking if search indexer should be killed too, however I let that be for a while, but killed windows mediaplayer sharing etc. stuff, there was loads of that kind of crap.
Also I did use program that was linked in this thread and did choose option that says something about forcing unload of .dll files and it seems to be that now closing apps actually does do something positive :P
I would think that most important thing with Vista is to keep your Cache above 500MB mark, else performance suffers greatly.
Edit: oh yes, got rid of readyboost also, pretty much every helper / easy to use function
Edit2: worked well a moment, but has been doing something odd for several minutes now, CPU usage 40-100% and HDD cries for mercy, bit slow to use again, pffff. I guess some other automatic function begs to get killed.
Edit3: Killed that search indexer, magically it did free ~60MB of ram and cpu load is staying 0-2% range when computer is idling, before hardly ever it did stay under 10%. Sure searching takes more time, but I usually know where to look and if I need searching I just put it searching on background and do something else meanwhile. Very recommendable, from services disable windows search...
Edit4: Tested LFS in laptop and it was 10-20fps more, less improvement at fast places, but more at slow places, I guess that is it from Vista's stopping processes that are not needed to give game cpu power it needs... 30->50fps is big jump, imo.
Edit5: Another log entry, sidebar uses now only 4-5% of cpu constantly and only 15MB or so memory, this after I disabled search, something dodgy in that search, imo.