My brother said he downloaded a file named:

Steinberg.Sequel.v1.2.0-PARADOX.rar

From emule, extracted the setup.exe and when he ran the setup, the computer paused and the setup.exe disapeared. He said before he ran the exe he made a restore point with System Restore, but unfortuently system restore was unable to roll back any changes made.

So I downloaded HiJackThis, ran it, saved a log and noticed somthing strange in the startup:

wintest.exe

But when I ran a search for the file, windows was unable to find it, so then I checked where it is located and HiJackThis tells me it's in:

C:\WINDOWS\System32\wintest.exe
O4 - HKLM\..\Run: [Microsoft Update] wintest.exe
O4 - HKLM\..\RunServices: [Microsoft Update] wintest.exe
O4 - HKLM\..\Run: [Microsoft Update] wintest.exe

This file was not there when I checked manually even showing hidden files and folders.

So I am asking Is this a normal system file? I thought I'd ask before deleting it with HiJackThis, I don't remember seeing this file in Task Manager at startup, and I think this may be what the setup.exe installed...as it did disapear after running it. AVGFREE does not say anything about a virus, spyware doctor does not say anything about spyware, so then what is this???
It runs not one but two instances of the file on startup, and to me it smellz like a bug, but I want to be sure before I delete it as I don't want to mess windows up to the point where it won't boot up.

This file does not do anything that I'm aware of, it just simply runs at startup and takes up a little memory usage.

Any help is appreciated, and thanks for your time...

There is also another file named carpserve.exe witch I suspect is part of this???? Can anyone verify these files to be needed by windows?