128 Mb isn't enough for Windows 2000, let alone XP. You should have at least 256 Mb, otherwise, if you open a couple of programs, the computer will start using the page file on the hard drive, which is horribly slow.
i isntalled xp pro the other night on a computer w/ 64 megs, a pentium1... 75MHZ. but yeah, it loads windwos fine (and as fast as my k6-2 500 laods 98SE) i wouldnt trust putting any programs on it...i'm doubtful that my page file isnt in use already just loading up windows. put a little more ram in there to be safe, i'd say. (and keep it clean of spyware and whatnot)
It will run fine. I had Windows XP on a P2 300 with 96mb of ram (bare minimum recommened i believe) and it ran flawlessly (actually it ran more resposive on that system then it does my current one). Just tone down the graphical features and you'll be fine
I can say this though, I dont know how I did it in those days. These days, with all the programs I have running at all times, I use up at least 300mb of ram, heh.
i have an amd k6-233 running 128MB ram, with xp and if you just turn off the eyecandy and treat it kindly, it will be just fine, at least my box is. i cant game with it, but PS and Premiere work, just really slow, but not one crash....
WOW! A 75 with XP? Really? I guess its more the ram then the cpu then. Thanks guys, I had had a PII266 running xp, but i didn't know about the old AMDs. I seem to recall that my Pentium 180 ran circles around my grrandma's K6-2 300. No joke. So I wasn't sure. Thanks again! I may go for more ram, just cause it is cheap.
If you strip XP a bit (ala http://www.blackviper.com/WinXP/servicecfg.htm) XP can run with 64 meg ram and just a few apps open with well under 500mhz...
My slower machines with XP are a /K6-2 500/256meg and palmtop 266mhz with 128meg and both do fine.
I have found that pretty much any version of windows will run on a system that has about 2/3 of what the stated minimum is. May not run great and it may take a looooooooooooonnnnnnnnnnnnnnnggggggggg time to start apps but they will run.
Not necessarily an enjoyable experience, and you must have patience (leaves me out!) but for general use you should be ok.
To make things...less bad tweak the daylights out of the system and turn off everything that is not essential- eye candy, unused services, etc.
And the cheapest way to boost performance will be more ram.
- My sister has a k6-2 450 with 384 mb of slow sdram that runs on XP: about 4 or 5 minute boot time, and 30 seconds or more to start just about any program, but it runs and is stable.