Pradeep,
wmiprvse.exe is part of Windows' WMI (Windows Management
Instrumentation) and lives in the folder:
C:\WINDOWS\\system32\wbem
....Do NOT do anything rash like trying to delete it. First of all it is
part of the Operating System and covered by Windows' File Protection which
means it will only 'reappear' if you do try to delete it.
The WMI is a part of the OS that oversees Windows' services for the
purposes of self-maintenance. Programs use WMI to query the state of the
system so if you have a problem with 'wmiprvse.exe' using up too much CPU
time, it is due to a program or process on your PC that is calling on WMI
functions.
I recommend that you download and use 'Process Explorer' (from Microsoft)
that will tell you a lot more about what is calling this process so that you
can further investigate whether the parent program is an essential one. On
starting 'Process Explorer' you will see a list of running tasks together
with details such as CPU time, Memory Usage, Process ID, and Threads and
will also arrange them in a 'tree' like order disclosing which process
started what other process. It is a simple to use and invaluable tool to
further understand the internals of Windows XP.
Download 'Process Explorer' from Microsoft at:
http://download.sysinternals.com/Files/ProcessExplorer.zip
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Cheers, Tim Meddick, Peckham, London.