Temporary Files: What Is Safe To Delete

I started with a clean slate when I installed XP. My c:\....local settings\temp folder was empty. But as I've been adding software, I have noticed all kinds of files being deposited in there. Some have .tmp extensions, which I delete. But there are others, some I suspect leftover from the Installshield or whatever the programs' installation program.

There are some .dll files in there too. including one located in a subdirectory called "istmp0.dir" and another called "twunk001.mtx". I cannot find anywhere what "mtx" is an extension for.

Is it safe to delete everything that is placed in the "temp" folder? What is fair game for deletion?

 

here you go... use this to cleanup
http://www.piersontech.com/07-CleanHardDrive.htm

 

How about "minidump" files in winXP? ends in *.dmp?

Your link says no defrag needed, but my Norton Speed Disk shows some pretty good fragmentation. I'm going to run it.

My c:\windows\temp folder is always empty. what's not empty is the "temp" folder located under "documents & settings\local settings\..."