agent.exe - another Trojan?

My machine started getting slow. I checked the task manager and learned that it no longer had idle time even when I was not running any apps. "agent.exe" seemed to using all spare cycles and then some. I searched the web and found that something named "agente.exe" was a Dell aupport and admin tool. Looking at my usage in add/delete program I learned that I had never used it at least according to that record. I removed the app, and "agent.exe" and the problem seemed to go away on the next reboot; I can't claim that this really fixed the problem.

This morning I noticed the problem again. Task manager indicated that "agent.exe" was back. I could mitigate the problem somewhat by lowering priority of agent.exe. But it still bugged me that I was no longer seeing idle cycles. What was this "agent.exe" process and what was it doing? I tried deleting the process and discovered that it reappeared shortly after.

I.e. this "agent.exe" thing is beginning to feel like a Trojan horse. Spybot, Adaware,
McAfee found nothing. Is it really nothing or something in the works?

I looked again on the web via google, and there were few hits. I then came to this forum and came away with the idea to do a Disk Cleanup, I guess to purge out any devious code
that might have crawled into the internet temporary area and elsewhere I suppose.

That seemed to do the trick.

Nevertheless, I am left with an uneasy feeling. I still do not know what the thing was,
what it was doing or where it came from.

For you who know of these things. Any thoughts?

regards,