NO task manager

other are working! I made a shortcut on my desktop for task manager (one click shortcut) (found that on this forum) but i getting error! "windows can´t find C:\WINDOWS\System32\ taskmgr.exe. make sure you typed the name correctly, and try again"

also, i have try start-->run-->taskmgr, but still ... nothing! can i reinstall that app from a win CD or something? or do i have to format ?

Okay, the taskmgr.exe file might be missing.
Do you have your XP disc?

yes i do!

You are going to have to use the disc to repair the problem, just insert the disc and then reboot normally. The machine will not boot from the disc and the background turns blue. It has two options, format and repair. We want format, it will also show "To do a repair install, press "R"", so type R and hit enter. This will start the repair.

See this guide if you have any questions, it has step by step.
http://michaelstevenstech.com/XPrepairinstall.htm