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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



Startup Name Process Name Details
X456655explorer.exe"Added by the BIFROSE-DE TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
Xccregexplorer.exe"Added by the ZCREW BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XConfig LoadatiorinI3Explorer.exe"Added by the SDBOT.H TROJAN!"
XExploreExplorer.exe"Added by the IRC.FLOOD.G BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
Uexplorerexplorer.exe"Starts Windows Explorer. Unless this has been manually added to startups or added by another program it could be a virus such as PE_BISTRO or DVLDR or MYDOOM.C. Note that it is also not the explorer.exe task/service you'll see when via CTRL+ALT+DEL"
Xexplorerexplorer.exe"Added by the KEYLOG-AK TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%\service"
XEXPLOREREXPLORER.exe"Added by the NETHIEF-P TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%\ShellExt"
Xexplorerexplorer.exe"Added by the BLOCKEY-A TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%\config"
XExplorerWindows Explorer.exe"Added by the SILLYFDC-I WORM!"
XExplorer lptt01explorer.exe"RapidBlaster variant (in a ""explorer"" folder in Program Files). Recommended you use RapidBlaster Killer to uninstall - see here.Note - this is not the legitimate Windows Explorer (explorer.exe) which would not normally appear in Msconfig/Startup unless you added it manually!"
XExplorer ml097eexplorer.exe"RapidBlaster variant (in a ""explorer"" folder in Program Files). Recommended you use RapidBlaster Killer to uninstall - see here.Note - this is not the legitimate Windows Explorer (explorer.exe) which would not normally appear in Msconfig/Startup unless you added it manually!"
Xexplorer.exeexplorer.exe"Added by the AGENT-EW or PWS-CY TROJANS! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
Xexplorer.exeexplorer.exe"Added by the DELF-ACL TROJAN! Note - the legitimate Windows Explorer (explorer.exe) is located in the Windows or Winnt folder and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in the Program Files folder"
XExplorer.execsrss.exe"Added by the JUEGO-B WORM! Note - this is not the legitimate csrss.exe process which is always located in %System% and should not normally figure in Msconfig/Startup! This one is located in %AppData%\Microsoft"
XExplorer6.1.EXEExplorer.exeAdded by the MYDOOM.B WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually!
XExplorerTaskexplorer.exe"Added by the ZCREW-B BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in the ""Fonts"" sub-folder"
XIE configureexplorer.exe"Added by the LINEAGE-C TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually!"
XIExplorerIExplorer.EXE"Added by the BANCOS-CH TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XIexplorerexplorer.exe"Added by the ZAPCHAS-AC TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
Xiexplorer lptt01iexplorer.exe"RapidBlaster variant (in a ""iexplorer"" folder in Program Files). Recommended you use RapidBlaster Killer to uninstall - see here"
Xiexplorer ml097eiexplorer.exe"RapidBlaster variant (in a ""iexplorer"" folder in Program Files). Recommended you use RapidBlaster Killer to uninstall - see here"
XIexplorer.exeIexplorer.exe"Added by the BANCBAN-EN TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XInternet Exploreriexplorer.exe"Added by the LORSIS WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XInternet ExplorerIExplorer.exe"Added by the NETHIEF-O BACKDOOR! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XInternet Explorer Agentiexplorer.exe"Added by the AGENT-BH TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XInternet Explorer Updateriexplorer.exe"Added by the REUR.B WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XInternet_Explorer.exeInternet_Explorer.exe"Added by the BANKER-END TROJAN!"
Xirwftpiexplorer.exe"Added by the BANKER-AN TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
Xkernel32sys.dllIEXPLORER.exe"Added by the RBOT-MK WORM!"
Uklpexplorer.exe"ComSurveilSys keystroke logger/monitoring program - remove unless you installed it yourself!"
Xloadexplorer.exe"Added by the LINEAGE-OZ TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XloadWinExplorer.exe"Added by the VB.EIW WORM!"
XLoadab1explorer.exe"Added by the LINEAGE-AJ TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
XloadMecq0explorer.exe"Added by the MUMUBOY.C TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
XloadMect1explorer.exe"Added by the LINEAGE-L TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
XMicroCQ0explorer.exe"Added by the LINEAGE-AK TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
XMicrosoftExplorer.exe"Added by a variant of the RBOT WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Automatic UpdaterExplorer.exe"Added by the RBOT-SG WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Explorerexplorer.exe"Added by the POEBOT-LY WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Inc.iexplorer.exe"Added by the LOVGATE.E WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XMicrosoft Inc.iexplorer.exe..."Added by the LOVGATE.AO WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XMicrosoft Internet Expiiexplorer.exe"Added by the RBOT-KX WORM!"
XMicrosoft Internet Exploreriexplorer.exe"Added by the SDBOT-XN WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XMicrosoft Synchronization Managerexplorer.exe"Added by the SDBOT-AEA WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Updateexplorer.exe"Added by the RBOT.AEU BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Update 32explorer.exe"Added by the RBOT-ARF WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMicrosoft Windows Exploreriexplorer.exe"Added by a variant of the RBOT WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XMicrosoft Windows XP/2K Explorerwinexplorer.exe"Added by a variant of the IRCBOT BACKDOOR! See here"
XMiscrosoft Windows ExplorerIEEXPLORER.exeReported as the SDBOT.YX WORM!
XMMB2explorer.exeAdded by an unidentified WORM or TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%
XMsAudioexplorer.exe"Added by the LEGMIR-BY TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XMSN Explorermsnexplorer.exe"Added by the AGENT-CAX TROJAN!"
XMsn MessengeIExplorer.exe"Added by the DELF-LL TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XMSN MessengerIExplorer.exe"Added by the BANKER-EU TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XNavegateiiexplorer.exe"Added by the BANCBAN-OP TROJAN!"
Xprint sharing[path] hidden32.exe [path] explorer.exe"Added by the ZCREW.B BACKDOOR! Note - the legitimate Windows Explorer (explorer.exe) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually!"
XRavshellIEXPLORER.EXE"Added by the AGENT.URZ TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XRpcLocatorexplorer.exe"Added by the RBOT-GSA WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XServicesiexplorer.exeAdded by an unidentified WORM or TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)
XShellExplorer.exe sound_drive16.exe"Added by the GP BACKDOOR! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""sound_drive16.exe"" file is located in %System%"
XShell"Explorer.exe msmsgs.exe"
XShellExplorer.exe svchost.exe"Added by the DOYORG BACKDOOR! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The legitimate svchost.exe process is always located in %System% and should not normally figure in Msconfig/Startup! This one is located in %Windir%"
Xshellexplorer.exe"Added by the KAKKEYS TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XShellExplorer.exe iexplore.exe"Added by the KIPIS-U WORM! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The legitimate Internet Explorer (iexplore.exe) is always located in %ProgramFiles%\Internet Explorer and should not normally figure in Msconfig/Startup! This one is located in %System%\Microsoft"
XShellExplorer.exe winupdate.exe"Added by the AGENT-FD TROJAN! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""winupdate.exe"" file is located in %System%"
XShellExplorer.exe [path] ibm[RANDOM 5 DIGIT NUMBER].exe"Added by the ANSERIN TROJAN! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files"
XShellExplorer.exe winsys32.exe"Added by the DELF.CP BACKDOOR! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""winsys32.exe"" file is located in %Windir%"
XShellexplorer.exe msbnc.exe"Added by the AGENT-PL BACKDOOR! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""msbnc.exe"" file is located in %System%"
XShellExplorer.exe kbdsys.exe"Added by the DAPROSY WORM! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""kbdsys.exe"" file is located in %AppData%\Microsoft\Keyboard"
XShellExplorer.exe init32m.exe"Added by the DLSW-B TROJAN! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""init32m.exe"" file is located in %System%"
XShellExplorer.exe smssnt.exe"Added by the AGOBOT.EE TROJAN! Note - do not delete the legitimate Windows Explorer (explorer.exe) which is located in %Windir% and can be used to launch other files. The ""smssnt.exe"" file is located in %System%"
XShell32explorer.exe"Added by the SDBOT-NF WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XsmsysExplorer.exe"Added by the CLICKER-C BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in a ""Template"" subfolder"
Xstartkeyexplorer.exe"Added by the BCKDR-MLD BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XSustemexplorer.exe"Added by an unidentified VIRUS
XSustemUpdateexplorer.exe"Added by an unidentified VIRUS
Xsvchost[path to explorer.exe]"Added by the UNREAL-A TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually!"
Xsyscheckiexplorer.exeAdded by the AGENT.DM TROJAN! Note - this is not the legitimate Internet Explorer (iexplore.exe)
Xsysconfigiexplorer.exe"Added by the CULT.C WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XsysMett1explorer.exe"Added by the LEGMIR-Y TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
XsystemExplorer.exe"Added by the GRAYBIRD BACKDOOR! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XSystem Update2explorer.exe"Added by the AUTOTROJ-C TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XSystrayw32explorer.exe"Added by the RBOT-AJY WORM!"
Xsys_Runtt1explorer.exe"Added by the LINEAGE-M TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %ProgramFiles%"
Xtaskmgrexplorer.exe"Added by the ZAPCHAS-AC TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindowsexplorer.exe"Added by the POEBOT-J WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindows Backup ConfigurationIEXPLORER.exe"Added by the GAOBOT.AZ WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XWindows ExplorerEEXPLORER.EXE"Added by a variant of the SPYBOT WORM!"
XWindows Explorerexplorer.exe"Added by the POEBOT-J WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindows ExplorerWindows Explorer.EXE"Added by the VB-EBA WORM!"
XWindows Explorer Keyexplorer.exe"Added by the IRCBOT-YB WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindows Explorer.exeExplorer.exe"Added by the FALTER-A TROJAN! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindows ServicesExplorer.exe"Added by the SDBOT-WT WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWindows System32explorer.exe"Added by the OPANKI-V WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is also copied to %System%"
XWindows Taskmanageriexplorer.exe"Added by a variant of the IRCBOT BACKDOOR! See here. Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XWindowz Update V2.0Explorer.exe"Added by the YODO WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWinlogon ShellExplorer.exe svchost.exe"Added by the KIPIS.M WORM! Note - this is not the legitimate svchost.exe process which is always located in %System% and should not normally figure in Msconfig/Startup! This one is located in a ""1032"" sub-folder"
Xwinnt DNS identiexplorer.exe"Added by a variant of the RBOT WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XWINTASKiexplorer.exe"Added by the MYTOB-CH WORM! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XWinUPD32explorer.exe"Added by an unidentified VIRUS
Xwinupdateconn_Explorer.EXE"Added by the COMBRA-B WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
XWinVNCiexplorer.exe"Added by the EVIVINC BACKDOOR! Note - this is not the legitimate Internet Explorer (iexplore.exe)"
XWksSVCEXPLORER.exe"Added by the MYTOB-BW WORM! Note - the legitimate Windows Explorer (same filename) is located in %Windir% and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%"
X[random number]explorer.exe"Added by the KEYLOG-AN TROJAN! Note - the legitimate Windows Explorer (explorer.exe) is located in the Windows or Winnt folder and would not normally appear in Msconfig/Startup unless you added it manually! This one is located in %System%\service"


DISCLAIMER: It is assumed that users are familiar with the operating system they are using and comfortable with making the suggested changes. I will not be held responsible if changes you make cause a system failure.

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.