at once? If its just one program go and get spybot its
free and it looks for spyware running in your computer.
Spyware goes undetected and makes your cpu run very
slowly. You can't see spyware running in task manager and
it pretty much goes undetected. Spyware will send info on
what your looking at on the web and is constantly running
so I would check to see if you have any. If you have
never checked for spyware it could be that you have a
couple running or in the case of my brother inlaw he had
296 running in his computer and it was dog slow. Good
luck.

Install, update and then run Ad-Aware 6 free edition, and remove what it finds:
http://www.lavasoftusa.com/support/download/

Perform a clean-boot and then troubleshoot:
How to Perform Clean-Boot Troubleshooting for Windows 98
http://support.microsoft.com?kbid2926

"CLEAN BOOT -- What it is and why you need it." (written by MS MVP Gary Terhune)
http://www.google.com/groups?selm=%23q4I1qNODHA.2096%40TK2MSFTNGP12.phx.gbl

If you have one of these versions of Office installed, or an individual Office program, read here:

OFF97: Overview of Find Fast Indexer
http://support.microsoft.com/?kbid6302

OFF97: How to Disable the Find Fast Indexer
http://support.microsoft.com/?kbid8705

OFF2000: How to Turn Off the Find Fast Indexer
http://support.microsoft.com/?kbid9787

OFF2000: Overview of Find Fast Indexer
http://support.microsoft.com/?kbid 5289

OFFXP: Hard Disk Runs Continuously After You Install Office XP
http://support.microsoft.com/?kbid(2106

OFFXP: Overview of the New Search Feature in Office XP
http://support.microsoft.com/?kbid(2107