Dont forget that Xolox ram usage is not depending on your CPU or operating system its depending of :

Number of search processed, number of directories and files shared, number of file you are downloading and uploading, your horizon, and most important : your bandwith and the BW setting.

If you have ram problems, try reducing the files shared to 1000, and reduce the BW setting.

To answer to your question about disk defrag :

Well no : disk defrag is not related to ram usage.

but ram fragmentation you can have.

Note : just rebooting, make a ram defrag

launch xolox immediately after booting, and wait 1 min before launching others apps.

Couldnt even run the program cause' it dropped my resources from 98% - 23% after defrag,scan disk...blah bla bla.I couldnt even close the opening window with tip to exit....three times.I have a powerful system also.Its chewing resources not ram.There is a difference.512mb of ram here with 98% resources should operate any program.Xolox is broke! :(

NitroRam
 

There is a progrgram out called NitrroRam that you can set it so whenever you are running out of RAM it will clean some stuff up so you can get it back. It is a great progrram for me. I have NEVER experienced any problems. Just goto yahoo.com and search for it.

-Shaun

memory leak
 

In my case (actually cases, since behavior seems to be the same with either 98 SE or 2K SP2) the higher I set the max upload speed, the faster my resources go away. Below a setting of 6, however, with my ADSL connection, I can run indefinitely without problems.