The PerfStringBackup.ini file is just a long text file with information that is used to display stuff in the Performance Monitor tool (perfmon.exe).
Assuming XP is installed on your C drive, the file should be here:
c:\windows\system32
If yours is missing, there is a copy on my SkyDrive you can download.
The Performance Monitor will not improve your performance. It may help you spot bottlenecks in your system from which you can make adjustments to improve performance, but I would really be desperate to use it for performance issues, but then I don't nave much
experience using it either. It is just a monitoring tool - you can't adjust anything with it.
I uploaded a copy of the XP Pro SP3 file you need to my SkyDrive (everybody has a SkyDrive for sharing files).
You can download it and when you do, put a copy of the file in these folders (assuming Windows is installed on your C drive):
c:\windows\system32
Here is the link to my SkyDrive and you can look for the file you need there:
https://skydrive.live.com/?cid=6a7e789cab1d6f39&id=6A7E789CAB1D6F39!311
When you see the files available for download, you may not see the file extension (.exe, .dll, .cpl, .sys, .zip, etc.), but when you download them they will have the correct extension.
When you download the file (especially if you use Internet Explorer), when you get a chance to save the file, your browser may not save the file with an extension (like .exe, .dll, .cpl, .sys, .zip, etc.) so you will have to manually add the proper extension
to the file when you download the file before you save it.
You can download the file with no extension and then rename the file to add the proper extension. You don't want to try to use a file called
PerfStringBackup when the file name really needs to be called PerfStringBackup.ini (if the downloaded file has no extension you will have to change the name of the file to add the proper extension to get it to work.
You then need to put the downloaded files in the correct folders on your system.
Then to load up the Performance Monitor counters from the PerfStringBackup.ini file, click Start, Run and in the box enter:
lodctr /R:PerfStringBackup.iniClick OK, the screen will flash and you'll be all set to add counters into Performance Monitor.