Chances are that you do not need the Indexing service.
cisvc.exe = Content Index service
From Black Viper
http://www.blackviper.com
[[Indexing Service
This service always has been a major resource hog. I NEVER recommend having
this service enabled. Remove the function via the "Add / Remove Programs"
icon in the control panel (Windows Setup Programs). It uses about 500 K to 2
MB in an idle state, not to mention the amount of memory and CPU resources
it takes to INDEX the drives. I have had people (and witnessed it on other
people's computers) report to me that the Indexing Service sometimes starts
up EVEN while the system is NOT idle... as in the middle of a game. You may
feel, as I do, that this is unacceptable. If your computer suddenly seems
"sluggish," Indexing Service is usually the cause of it.]]
===
[[Indexes contents and properties of files on local and remote computers;
provides rapid access to files through flexible querying language.
What Microsoft said above. What they don't say is that this service tends to
run amok, indexing far more than necessary and starting without warning. For
the benefit it provides, the resource usage is far from an equal tradeoff.
However, in all fairness, if you have a reasonably powered machine you might
as well leave Indexing Service on. It can speed things up a bit and most of
the systems capable of running XP efficiently shouldn't be bogged down by
having this service running. If it does take a noticeable performance hit
it's really time to consider upgrading.]]
http://www.theeldergeek.com/indexing_service.htm