The system: Intel Celeron 500Mhz 64MB PC100 RAM 13GB HDD Onboard graphics Onboard sound Windows xp pro (w/o sp2)
The software: MSN Messenger Opera Browser DBpoweramp Soulseek MS Word/excel/access
Okay..so its from the ark, and as we speak im waiting for a cheapo RAM upgrade to 196. Its a temporary system, but I need to eke every single drop of performance from that system, without hardware changes. I dont mind stipping it back to the basics even more than I have (all xp settings on best performance), or changing to more efficient software...
I'm suprised you got XP to run with only 64Mb RAM. As ashdav suggests use blackviper to reduce all the background tasks to an absolute minimum and keep those temp file and internet cache clear. Crap Cleaner click here will keep them and the registry clean.
Your m/board supports up to 512 megabytes of memory,(but i believe they have to be matching meaning, what ever you put in, will run at the lower module rate if mixed. A pain if you've got some lower-capacity RAM modules already sitting around.