Close Program/Task Manager
This is NOT a list of tasks/processes taken from Task Manager or the Close Program window (CTRL+ALT+DEL) but a list of startup applications, although you will find some of them listed via this method. Pressing CTRL+ALT+DEL identifies programs that are currently running - not necessarily at startup. For a list of tasks/processes you should try WinTasks 5 Standard/Professional from LIUtilities or the list at AnswersThatWork. Therefore, before ending a task/process via CTRL+ALT+DEL just because it has an "X" recommendation, please check whether it's in MSCONFIG or the registry first. An example would be "svchost.exe" - which doesn't appear in either under normal conditions but does via CTRL+ALT+DEL. If in doubt, don't do anything.

Operating System Differences
A number of entries are repeated due to the way that different operating systems display startup items. For example, WinMe lists "POPROXY.EXE" as "Norton eMail Protect" in both MSCONFIG and the registry whereas WinXP lists it as "Poproxy" in MSCONFIG and "Noeton eMail Protect" in the registry.

To avoid the list becoming too large, all VIRUSES are shown using the registry version which is common to all Windows versions.

Alternatively use your browsers search facility - Ctrl+F for IE users.

Key:

"Y" - Normally leave to run at start-up
"N" - Not required - typically infrequently used tasks that can be started manually if necessary
"U" - User's choice - depends whether a user deems it necessary
"X" - Definitely not required - typically viruses, spyware, adware and "resource hogs"
"?" - Unknown

Use your browsers search facility - Ctrl+F for IE users.

Name/Startup Item	Command	Comments
X		system32.exe	Added by the AGOBOT-KU WORM! Note - has a blank entry under the Startup Item/Name field
Y	!1_pgaccount	pgaccount.exe	DiamondCS ProcessGuard security software - stops malicious worms and trojans from being executed silently in the background, as well as a variety of other attacks. You will see one instant of pgaccount.exe for every active account on your system, and this is essential for PG to work properly
Y	!1_ProcessGuard_Startup	procguard.exe	DiamondCS ProcessGuard security software - stops malicious worms and trojans from being executed silently in the background, as well as a variety of other attacks
N	!NoLoad	winrecon.exe	WinRecon - surveillance software that creates records of everything people do on a computer, ie, spying or monitoring depending upon how you call it
?	$EnterNet	Enternet.exe	Connection manager for the EnterNet ISP. You can also use RASPPOE
X	$WindowsRegKey%update	IEXPLORE.EXE	Added by the RBOT-EZ WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe) process, which should not appear in Msconfig/Startup unless you add it manually!
N	%cmpmixtitle%	%cmpmixstr%	Possibly related to C-Media Mixer Control panel?
?	%FP%012-L2TP fts.exe	fts.exe	012.Net ISP software - what does it do and is it required?
?	%FP%012-L2TP FWPortal.exe	FWPortal.exe	012.Net ISP software - what does it do and is it required?
?	%FP%1776 Internet fts.exe	fts.exe	1776 Internet ISP software - what does it do and is it required?
?	%FP%1776 Internet FWPortal.exe	FWPortal.exe	1776 Internet ISP software - what does it do and is it required?
?	%FP%Barak013 fts.exe	fts.exe	Barak013 ISP software - what does it do and is it required?
?	%FP%Barak013 FWPortal.exe	FWPortal.exe	Barak013 ISP software - what does it do and is it required?
?	%FP%Friendly fts.exe	fts.exe	Friendly ISP software - what does it do and is it required?
X	(*)API Machine	winSOCKS.exe	Homepage hijacker, see here (* = any digit)
X	(*)Run	win32API.exe	Homepage hijacker, see here (* = any digit)
X	(Default)	media_driver.exe	Added by the TUPEG VIRUS!
X	(Default)	Shania.vbs	Added by the SHANIA TROJAN!
X	(Default)	NOTEPAD.exe	Added by the RUSTY WORM! Note - not to be confused with the valid Windows "NOTEPAD" text editor
X	(default)	[random filename].exe	Added by the BLACKMAL WORM!
X	(default)	twunk_32.exe	Added by the BLACKMAL.C WORM!
X	(default)	winhelp.exe	Added by the BLACKMAL.C WORM!
X	(L4r1$$4) (4nt1) (V1ruz)	SP00Lsv32.pif	Added by the ASSIRAL.B WORM!
X	*JanisRuckenbrodII	janis.com	Added by the POPS WORM!
Y	*StateMgr	statemgr.exe	Windows ME default for System Restore. Do NOT disable!
X	*windows update	wrauclt.exe	Added by the RBOT-QU WORM!
X	*windows update	wuanclt.exe	Added by the RBOT-PG WORM!
X	*windows update	wuaucrlt.exe	Added by the SPYBOT.HUR WORM!
X	*windows update	wuraclt.exe	Added by the RBOT-PO WORM!
X	*windows update	wurauclt.exe	Added by the RBOT-SY WORM!
X	*windows update	wsctl.exe	Added by the SPYBOT.PR WORM!
X	*WinLogon	[trojan path] ren time:[random number]	Added by the VUNDO TROJAN!
X	,main drive Loader	wininfo.exe	Suspected malware as it appears in 3 different registry locations - see here
X	.mscdr	lassa.exe	Added by the WEBUS.C TROJAN!
X	.mscdr	lsvchost.exe	Added by the WEBUS.D TROJAN!
X	.mssecure	mssecure.exe	Added by the DDOS_BOXED.X TROJAN!
?	.NET config	sysmon32.exe	??
X	.norton	rchost.exe	Added by a variant of the BOXED-A TROJAN!
X	.Prog	services.exe	Added by the NEVEG.B or NEVEG.C WORMS! Note - this is not the legitimate services.exe process, which should not appear in Msconfig/Startup!
X	.Prog	winlogon.exe	Added by the NEVEG.A WORM! Note - this is not the legitimate winlogon.exe process, which should not appear in Msconfig/Startup!
X	.TEXTCONV	csrss.exe	Added by the WEBUS TROJAN! Note - this is not the legitimate csrss.exe process, which should not appear in Msconfig/Startup!
X	.TEXTCONV	lsass.exe	Added by the WEBUS.B TROJAN! Note - this is not the legitimate lsass.exe process, which should not appear in Msconfig/Startup!
X	.WMAudio	csrss.exe	Added by the WEBUS TROJAN! Note - this is not the legitimate csrss.exe process, which should not appear in Msconfig/Startup!
X	.WMAudio	lsass.exe	Added by the WEBUS.B TROJAN! Note - this is not the legitimate lsass.exe process, which should not appear in Msconfig/Startup!
N	/l:eng	N/A	Related to the Dell OEM version of the Sound Blaster Audigy 2 sound card. If this item is listed and checked in startup, the System32 Folder will appear on every startup. A patch is available - filename R75304.EXE - that fixes the issue. You can find that file at support.dell.com by typing that name in the 'Search' box available there. It addresses the root of the problem in Creative's software and corrects it. Unfortunately there is no direct link to the file, but it's easily available using the search function
X	000hpdllhos	hpdllhost.exe	LZIO.com adware downloader
U	000StTHK	000StTHK.exe	Toshiba Hot key functionality for the function keys (Fn-Esc, Fn-F1 (lock), Fn-F2, Fn-F3, Fn-F4, Fn-F5 (switching between laptop and CRT display output), etc...)
U	00THotkey	00THotKey.exe	For Toshiba Satellite notebook series to use the front buttons, play, stop, next, prev.
U	0190 Warner	WARN0190.EXE	Anti-dialer program (Germany)
U	0900 Warner	WARN0900.EXE	Anti-dialer program (Germany)
X	123456	rundll32.exe shell32.dll, Control_RunDLL ...123456.cpl	Added by the KITRO.C (or DANDI.A) WORM! 123456 can be any random 3 to 6 digit number
U	12Ghosts Popup-Killer	12popup.exe	12Ghosts Popup-Killer
?	17779Proj2002	N/A	??
X	180adsolution	180adsolution.exe	180Solutions/N-Case adware variant
X	180ax	180ax.exe	180Solutions/N-Case adware variant
N	1:	hpdrv.exe	HP utility for monitoring when and how many recoveries have been done
N	1A:MacVisionTrayMonitor	TrayMonitor.exe	Comes with the MacVision program for monitoring tray icons (Note : program is by Stardock)
Y	1A:Stardock MCP	mcpserver.exe	Master Control Program for Stardock apps, in development. People should leave it running if they're using any of the Stardock applications
Y	1A:Stardock TrayMonitor	TrayServer.exe	For monitoring tray icons - if disabled icons will not be displayed in ObjectBar or DesktopX
?	1CmailS	NETMAIL.EXE	??
X	1on1	1on1.exe	Adult content dialler
U	1Srv32	SpyAgent4.exe	SpyTech SpyAgent monitoring software. "Spy software that allows you to monitor EVERYTHING users do on your PC."
U	1Win32Cfg	SpyBuddy.exe	SpyBuddy monitoring software
U	1Win32Cfg	Keyloggerpro.exe	KeyloggerPro - monitoring software
X	1WinCfg32	WebMailSpy.exe	WebMailSpy spyware
X	2020Downloader	mssvr.exe	2020Search Toolbar related. Reported to be auto-installed
X	2thousandbuck	[path to file]	Added by the RANKY.L TROJAN!
U	2wSysTray	2portalmon.exe	2Wire Homeportal user interface
X	32-bit Thunking service	thunk32.exe	Added by the DERDERO.A WORM!
?	39ELTFH25Z8SKF	Ezg1q5.exe	Seems to be associated with software by Resplendence SP ?
Y	3c1807pd	3cmlink.exe 3cpipe-3c1807pd	3Com WinModem driver. See here for more WinModem information
Y	3capplnk	3capplnk.exe	US Robotics Modem driver
N	3cdminic	3CDMINIC.EXE	3Com DMI (DynamicAccess Desktop Management Interface) Agent associated with 3Com network cards
?	3CM Link	3cmcnkw.exe	??
Y	3Cmlink	3CmlinkW.exe	For a US Robotics WinModem. Provides the link to Windows as the CPU does the processing on WinModems - won't work without it. See here for more WinModem information
N	3ComDMIAgent	3CDMINIC.EXE	3Com DMI (DynamicAccess Desktop Management Interface) Agent associated with 3Com network cards
Y	3cpipe-USRpdA	USRmlnkA.exe	Modem driver files from US Robotics
X	3D Text	3D Text.scr	Added by the JERMY.A WORM!
U	3Deep Control Panel	3DeepCTL.EXE	From LightSurf Technologies (nee E-Color) - 3Deep corrects lighting, shading and color for all your 2D and 3D games
X	3Dfx Acc	GFXACC.EXE	Added by the GIBE WORM!
N	3dfx Task Manager	3dfxMan.exe	System Tray application for 3dfx Voodoo 3/4/5 functions. Available via Start -> Programs
Y	3dfx Tools	3dfxCmn.dll	Updates the registry with information that can't be held for Voodoo 3/4/5 series graphics cards. Important for owners of these cards
Y	3dfxv2ps.dll	3dfxv2ps.dll	Updates the registry with info that can't be held for 3dfx Voodoo 2 video cards. Important for owners of these cards
?	3Dlabs Taskbar Display Manager	3DLman.exe	3DLabs graphics driver related. System Tray access to display settings?
U	3DLabsHelperDemon	3dldemon.exe	Directly from the programs author "It is a tiny program that is installed by the Permedia2/3 and probably other Oxygen-series cards. Normally it sits in the background doing nothing at all (sleeping on a semaphore), so it should take zero CPU time and virtually zero memory, since it will all be paged out to the hard drive." In most cases it can be safely disabled
U	3qdctl.exe	3qdctl.exe	Provided with Terratec 128i PCI and similar sound cards. Loads a sound profile at bootup, restoring volume and other audio settings to a pre-determined default. Similar to Creative Lab's AudioHQ
Y	3ware 3DM	3dm.exe	Monitors status of the disk array on 3ware IDE RAID controllers
X	4wd!!!	Natal!.pif	Added by the OPASERV.AI WORM!
X	5-1-61-96	members-area.exe	Adult content dialler
X	5-2-46-112	5-2-46-112.exe	Adult content pop-up dialler. Removal instructions here
X	666	Ska.exe	Added by the PIPES TROJAN!
X	9xHtProtect	AVprotect9x.exe	Added by the NETSKY.M WORM!
X	;Rundll	[filename]	Added by the PWSLEGMIR.E TROJAN!
X	@	regedit -s ..win.dll	Added by the SEEKER.K TROJAN!
N	@Hoc Toolbar	AtHoc.exe	One-click activated browsing toolbar used by various web-sites. See here for more info
N	@loha	reminder.exe	Registration reminder for @loha@home E-mail utility
X	@tour_ww	@tour_ww[1].exe	Adult content dialler
X	a	a.exe	Commercials file that registers itself in the system registry and redirects IE to a certain commercial website
U	a-squared	a2guard.exe	a-Squared antitrojan - can be run on demand but necessary in Startup if you prefer the a˛ 'Background Guard' real time protection feature
Y	a-winpoet-service	winpppoverethernet.exe	WinPoET is the industry's first Windows-based PPP over Ethernet client. Developed by iVasion, WinPoET is attractive to equipment providers, modem suppliers, RBOCs and ISPs. For more info read here. It uses dial-up networking for new high-speed internet customers who are more familiar with analogue modems. If unchecked in MSCONFIG it reports Error 360 - Hardware Error in dial-up networking
U	A1000 Settings Utility	cpqa1000.exe	Compaq A1000 Print Fax All-in-One copy scan printer software. Required in the Startup in order to scan, print, copy and fax. Only required if you use these features
U	A4Proxy	A4Proxy.exe	Anonymity 4 Proxy - local proxy server that makes you anonymous when visiting web sites
?	AAACLEAN	AAACLEAN.INF	??
?	AAAKeyboard	??	??
N	AAATraySaver	TraySaver.exe	System Tray management utility from Mike Lin which allows you to hide, show, restore icons that are lost in an Explorer crash, remove dead tray icons, minimize any window to the System Tray
U	AAK	aak.exe	Advanced Anti-Keylogger - "Anti-spy software to prohibit operation of any keyloggers currently in use or presently being developed anywhere"
X	Aaou	amee.exe	PurityScan/Clickspring adware
?	ab EazyScheduler	ezsched.exe	??
N	ABBYY Community Agent	CAGENT.EXE	Installed with the Optical Character Recognition (OCR) software that comes bundled with a Compaq A3000 all-in-one printer/scanner. Its function appears to be to link you to the internet in an attempt to buy the 5.0 version of the software
X	ABC	keylogger.exe	Monitors keystrokes so you can check if someone has typed anything while your away from your PC. Reported as spyware by SpyCop in their FAQ
U	ABIT uGuru	uGuru.exe	Provides quick access to several Abit motherboard utilities - such as monitoring cpu temperature, fan speeds, overclocking, flashing of BIOS
U	Absolute Shield	dseraser.exe	Absolute Shield/Evidence Eliminator - iternet history eraser
U	Absolute StartUp monitor	ASMon.exe	Absolute Startup - startup monitor from F-Group Software
X	ABsr	absr.exe	Added by the AUTOUPDER TROJAN!
X	absr	mwsvm.exe	SeekSeek search hijacker related - as seen here
X	abtu	mp3serch.exe	Loads the executable for Lop.com. mp3serch.exe is the final version
X	abtu	lopsearch.exe	Loads the executable for Lop.com. lopsearch.exe is the beta version
U	AbyssWebServer	abyssws.exe	Abyss web server
Y	AcBtnMgr_Xxx	AcBtnMgr_Xxx.exe	Associated with the Lexmark Xxx (where "xx" is the model) all-in-one printer/scanner/copier. Required for correct operation
U	acc	acc.exe	Advanced Call Center - "full-featured yet easy-to-use answering machine software for your voice modem"
X	ACCDEFRAGINFO	[path to worm]	Added by the DARBY-O WORM!
U	Accelerate	accelerate.exe	Webroot Accelerate - allows you to optimize Windows network registry settings in order to boost surfing speeds. Leave this enabled if you find it improves your connection
N	Access Ramp Monitor	armon32.exe	Monitors your progress on the internet; hang-ups, connection speeds, internet congestion and traffic flow. It prevents some games from running also. To disable the Access Ramp Monitor (1) Open Windows Explorer (2) Open the Program Files folder (3) Open the MindSpring folder (4) Open the AccessRamp folder (5) Double-click on the ARMCfg32.exe file (6) Uncheck Enable Dialup Monitor and click OK (7) Restart the computer and try again
N	AccessRamp Monitor01	ARMon32a.exe	From a visitor "Just wanted to provide you with some info on Access Ramp software installed with Verizon DSL accounts in those areas that use the Winpoet PPPoE software. The Access Ramp TSRs are installed as part of IP Insight software (can't remember the software maker). You can decline to install IP Insight during Winpoet setup, or go into Add/Remove programs uninstall IP Insight by hand if it's already installed. It really doesn't do a darn thing for you. It was intended to help DSL techs monitor QoS, but the backend part was never implemented (at least as of earlier this year). This will not affect the user's ability or inability to access their DSL service."
N	AccessRampLAN01	ARUpld32.exe	Version of the AccessRamp Monitor01 entry for LAN connections - a history uploader. The key in turning it off is a file named ARUCfg32.exe. This file (ARUCfg32.exe) does not show up in the startup process. If you have this file, you can execute it and remove all the monitoring activities it does. Removing all the checks in all the boxes (both tabs) still calls ARUpld32.exe to start when you start the dial up. You can block it from sending info if you have Zone Alarm installed. Renaming the extension of ARUCfg32.exe to ARUCfg32.exe1 works. The ARUpld32.exe is not loaded when launching the dial up client. Written by IP Insight and also included with Earthlink Total Access 2003
U	AcctMgr	AcctMgr.exe	Norton™ Password Manager - part of Norton SystemWorks 2004 - stores passwords and other personal information, and retrieves the data needed for email logins, shopping orders, banking, and other online activities—all from the safety of your own PC
N	AccuWeather.com® Desktop	??	Desktop weather from AccuWeather.com
?	Ace bows	Ace bows.exe	??
N	AceGain LiveUpdate	LiveUpdate.exe	AceGain_LiveUpdate. "AceGain LiveUpdate provides a fully managed and customizable LiveUpdate platform that seamlessly integrates with a game. As soon as an update is made available, AceGain manages the alert, download and installation as well as version control and user network preferences."
U	AcerNotebookManager	almxptray.exe	System Tray access on some Acer Notebooks to give faster access to system settings
U	AcerPowerkey	Powerkey.exe	PowerKey utility for Acer TravelMate notebook PCs. Allows the user to quickly switch between different power schemes by pressing Fn+F3
N	Acme.PCHButton	pchbutton.exe	Used by HP Instant Support
Y	ACMonitor_Xxx	ACMonitor_Xxx.exe	Associated with the Lexmark Xxx (where "xx" is the model) all-in-one printer/scanner/copier. Required for correct operation
X	acocash	fastdown.exe	Adult content dialler
X	acocash	fastdown.exe	Adult content dialler
U	Acombo3dmouse	Acombo3d.exe	Mouse driver - required if you use non-standard Windows driver features
X	Aconti	aconti.exe	Adult content dialler
U	acoustic	acoustic.exe	Control panel program for Philips Acoustic Edge soundcard. Not required unless changed settings aren't retained
N	acpart	agpart11.exe	Program for finding trucks on-line
U	Acrobat Assistant *.*	ACROTRAY.EXE	Used to create PDF files with Acrobat Distiller. For Win9x/Me systems you can run this file manually beforehand. For WinXP systems this file must run at startup. Hence the "U" recommendation. *.* represents the version
U	Acronis Scheduler2 Service	schedhlp.exe	Part of Acronis True Image - backup software. Co-operates with the "schedul2.exe" servuce to perform backup/restore tasks correctly. Required if you want to use TrueImage to do some real backup/restore tasks - not if you only want to explore/mount images
N	Acronis TrueImage Monitor	TrueImageMonitor.exe	Part of Acronis True Image - backup software. Can be disabled without affecting TrueImage
N	AcronisTrueImage Monitor	TrueImageMonitor.exe	Part of Acronis True Image - backup software. Can be disabled without affecting TrueImage
N	Acronis True Image Monitor	TrueImageMonitor.exe	Part of Acronis True Image - backup software. Can be disabled without affecting TrueImage
N	Action Manager 32	am32.exe	Associated with a Plustech scanner. Small utility that runs in the background for doing fax/copy/etc. Available via Start -> Programs
?	ActionAgent	actionagent.exe	"A COM server that runs on the client as part of the Dell OpenManage Client Instrumentation 6.x package; provides a simple method for a remote administrator to perform actions on the instrumented client". Is it required?
N	Activation	Activation.exe	Part of Microsoft Money
U	Activboard	MMKeybd.exe	Packard Bell ActiveBoard keyboard - multimedia keyboard manager. Required if you use the additional keys and want to see the status of the Num Lock, Caps Lock, Scroll Lock keys
U	Active shield	Activeshield.exe	Active Shield is "an heuristic screen that actively protects your computer from trojans, spyware, adware, trackware, dialers, keyloggers, and even some special kinds of viruses"
X	ActiveDesktop	systray32.exe	Added by the DABOOM WORM!
X	ACTIVEDS	ACTIVEDS.EXE	Added by the OPASERV.T WORM!
N	ActiveEyes	ActiveEyes.exe	ActiveEyes from TFI Technology
U	ActiveMenu	ActiveMenu.exe	WildTangent games that come with some HP computers. Unchecking it can prevent the games from running occasionally. Note that WildTanget's privacy policy used to state that they also collect and share individuals information but this is no longer the case
U	ActivePlus	activeplus.exe	Interactive Agents Plugin for Messenger Plus! (MSN Messenger add-on)
Y	ActiveShield	MCVSSHLD.EXE	McAfee VirusScan On-line. See also the McAgentExe entry
N	ActivSurf	backweb*****.exe	Packard Bell ActivSurf - automatically detects an internet connection and downloads any available updates
U	ActMaker	ActMak25.exe	"ActMaker mouse and keyboard toolkit can record the daily operation of your computer and reduce your workload. You don't need to do any coding, nor are you required to know a lot about the computer"
U	ACU	ACU.exe	Atheros wireless Client Utility For HP Compaq
U	Ad Blocker	blocker.exe	Ad Blocker - blocks popups, and also removes banners, image ads and flash ads
U	Ad Blocker Pro	Ad Blocker Pro.exe	Ad Away popup and banner remover
U	Ad Muncher	AdMunch.exe	Ad Muncher removes adverts, pop-ups and general annoyances in your browser, file-sharing and messenger programs. Causes conflicts with Outlook, game sites and web-building applications
?	Ad Online Guide	adonlineguide.exe	??
N	Ad-aware	Ad-aware.exe	Ad-aware from Lavasoft. Checks your PC for "Spyware" which reports back your internet activities to "base". Available via Start -> Programs
U	Ad-Muncher	ADMUNCH.EXE	Ad Muncher removes adverts, pop-ups and general annoyances in your browser, file-sharing and messenger programs. Causes conflicts with Outlook, game sites and web-building applications
U	Ad-watch	Ad-watch.exe	Part of Lavasoft Ad-aware Plus - realtime spyware-monitor watching your memory and registry for spyware that tries to install or change your system
U	AD2KClient	AD2KClient.exe	Executable for Active Disk from Iomega disk - allows software applications to be run directly from an Iomega Zip® disk. Required if you wish the applications to launch on insertion of a disk
N	Adaptec DirectCD	Directcd.exe	DirectCD primarily allows you to drag and drop files onto a suitably formatted CD-RW disc. Unless you use this on a frequent basis it isn't required and is available via Start -> Programs. Start the program before inserting a DirectCD formatted CD-RW in the drive. A re-boot is recommended if you close Adaptec DirectCD before re-opening it again later