Winpatrol NOT antivirus software, it is a system diagnostic tool, it is completely different from A/V software.
If you need a free A/V, I suggest that you go with Avira Antivirus.
It got 4.5 stars on PC world.
http://www.pcworld.com/reviews/product/290836/review/antivir_personal.html
I have been using the free version for a little more than a year now and I have not had any problems.
Here is the download link.
http://download.cnet.com/Avira-AntiVir-Personal-Free-Antivirus/3000-2239_4-10322935.html?part=dl-10322935&subj=dl&tag=button&cdlPid=11012914
I think that it is very user-friendly, but then again, I am very computer literate.
WinPatrol Plus (paid version)
Claims to protect you from a lot of bad programs with it's Real-time Infiltration Detection
http://www.winpatrol.com/rid.html
ilename Description Detected Notes
cfgmgr52.dll BookedSpace malware Yes
exp.exe trojan Yes
wintask.exe Pop Marketing Yes
VbouncerInner.exe Virtual Bouncer Yes
VirtualBouncer.exe Virtual Bouncer Yes
BundleOuter.exe Virtual Bouncer Yes
AdDestroyer.exe Ad Destroyer Yes
ScreenSaversInst.dll ScreensaversInstaller Module Yes
Starware.dll Starware Yes
MiniBug.exe WeatherBug Download Manager Yes
w6bar.dll My Web Search Bar for IE and Firefox Yes Still installs in Firefox
EliteSideBar 08.dll Elite Sidebar Yes
EliteToolBar version 60.dll Elite Toolbar DLL Yes
eliteiuh32.exe (unknown) Yes Tries several times
bbsmartstubfal.exe BonziBuddy Yes
bonzibdy.exe BonziBuddy Yes
ErrorGuard.exe Error Guard Yes
GSYUpdater.exe GotSmiley Yes
GotSmiley.exe GotSmiley Yes
CMESys.exe CME (Gator) Yes
SeaWDurlIE.exe (unknown) Yes
djtopr1150.exe Adware Yes
wupdt.exe IMISERV virus Yes
systb.dll Wbho module Yes
[unknown] Unknown title (IE helper) Yes Winpatrol shows “Unknown Title”
RegClean.exe Registry Cleaner Yes
svcproc.exe Trojan.Win32.Stervis.b Yes Described as “System Startup Service”
WebRebates0.exe Web Rebates Yes Tries several times
Psof1.exe Pacimedia adware Yes
nvms.dll IE BHO, part of NaviSearch Yes
msbe.dll Exact Advertising Yes
bargains.exe BargainsBuddy ADP module Yes
nls.exe NaviSearch Module Yes
aunps2.dll adware/spyware Yes
istsvc.exe ISTBar Yes
amdnrc.exe (unknown) Yes
nem220.dll DyFuCA_BH Module Yes
cxtpls.dll Apropos Media ContextPlus BHO Yes
sfbho.dll SideFind BHO Yes
istbarcm.dll ISTBar Yes
sacc.exe SurfAccuracy Yes
optimize.exe Internet Optimizer Yes
cxtpls_loader.exe Apropos Media ContextPlus Yes
ctfcap32.exe (unknown) Yes
AutoUpdate.exe Apropos Media Yes
PowerScan.exe Integrated Search Technologies Yes
Comedy-planet.exe Comedy Planet Yes
whiehlpr.dll WebHancer Customer Companion Yes
whAgent.exe WebHancer Customer Companion Yes
whSurvey.exe WebHancer Survey Companion Yes
ieBHOs.dll E2G plugin Yes Tries repeatedly,
AuroraHandler.dll Aurora Handler Yes Tries repeatedly
stlb2.dll BrowserAid Search and Click Toolbar Yes Tries repeatedly
WebCpr0.exe Web_CPR/TopMoxie Yes
Wast2.exe Twain-Tech Yes
ARUpdate.exe AdRoar Yes
TVS_B.exe BroadcastPC Yes
Ftkcpy.exe XML Extender Yes
AdRoar.dll AdRoar Yes
ftk.dll XML Extender Yes Tries repeatedly
Ssk.exe Surf Sidekick Yes
cashback.exe Top Rebates Yes
mscb.dll BargainBuddy Yes
VVSN.exe WhenU Yes
Save.exe WhenU SaveNow Yes
newdotnet6_38.dll New.net Domains Yes
Newdotnet6_84.dll New.net Domains Yes
sssTbar.dll SssTbar module Yes
UCMTSAIE.dll UCMore XP Toolbar Yes
ru.exe Quicktlme (adult content dialer) Yes
Search.exe WhenUSearch Yes
whse.exe WhenUSearch Yes
rk.exe RelevantKnowledge Yes
rlvknlg.exe RelevantKnowledge Yes
search.dll WhenUSearch Module Yes
mwsoemon.exe My Web Search Bar Yes
mwssrcas.dll My Web Search Assistant for IE Yes
mwsbar.dll My Web Search Bar Yes
Hyperbar.dll Hyperbar Yes
Superbar.dll SuperBar Yes
sbhc.exe SuperBar Yes
msbb.exe Ncase Yes
Weather.exe WeatherBug Yes
Sync.exe ClockSync Yes
zanu.exe Ncase Yes
zanuhook.dll Ncase Yes
dkuc.exe (unknown) Yes