OK, I just went from 128 to 256 megs and I have to say this setting is not hype but REALLY works ! Ran System monitor before and after using this setting. Before while playing Q3ATA my 200 swap file was using about 30 megs, after it a big zero. More then that I see a smoothness in gameplay. I had that occasional hitching to the drive before also, now its gone. I played for over 1 hour then read the system log file.
For me this is no longer a controversy but something I would reccomend to those above 128 megs and are power users like myself.
I also ran these test before addding my 128 stick and I saw NO benefit until now. Yes I did read the previous link to MS Tech Net.
I saw nothing that said "warning: don't do this".
With the price of memory so cheap now, why not get more and try it ?
System:
P3 650e
256 megs crucial cas2
30gig maxtor & 8.5 gig wd
32 meg geforce DDR
Aureal sound 2500
Umax Scanner 3400 USB
CDRW HP 10 x 8 x 4
Intellimouse explorer USB