I've been gradually converting all the computers here to XP. I finally got to my V4, pentium200mmx, 128meg ram, built in ide cdrom. A very long install, over two hours....this was not a clean install....just did an upgrade over ME. I wanted to see how it worked. No crashes during the install....I did first uninstall programs I knew would not work in XP...Zone Alarm for one. Everything's working ok....somewhat slower than an AMD k62+450@200. About as fast as Win98.
I did have one problem I never saw before.....Everytime I tried to use the modem, the computer crashed. That problem was fixed by using a slightly more powerful power supply. I guess the load of the cdrom combined with XP was too much. May have been something else, but the new P/S fixed the problem so far.
Here's something I learned....you can make XP smaller by removing programs you don't use...in order to do this you have to modify some system files, otherwise the uninstall option does not show up in the control panel for a lot of programs (windowsXP programs). Here's how to do it: Go to the Windows folder/inf/sysoc.inf.....remove the word "hide" from all the entries in that folder. In order to see that folder you have to enable "view all files" in tools/view/folder options. After you do this, you will then be able to remove a whole lot of stuff using control panel....including the annoying messenger icon that always pops up. I'm not sure how small you can shrink this OS....maybe 900mb. Problem here is you have to do a large default install before you can shrink it....there may be a work-around here, but I haven't found it yet.
Here's the best part...The USB out on this computer has also been completely fixed by this XP install....it wasn't working well before with ME. This proves to me that the USB fix on the other XP/I-Opener install, wasn't a fluke.
One more thing I learned....when you do an upgrade like this, you do have the option to return to the previous OS. You can also remove the back-up previous OS file if you want....saved me 177mb (ME).