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If you're not finding what you're looking for please go to this forum and submit a new startup entry.


  • "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
NAllerCalcAllerCalc.exe"AllerCalc is an expression calculator which allows you to directly enter an expression to be evaluated. Can be started manually"
Xcalc"rundll32.exe [path] ntuser.dll_IWMPEvents@0"
Xcalc"rundll32.exe calc.dll_IWMPEvents@0"
XCalc Microsoft Windowswincalc.exeAdded by an unidentified WORM or TROJAN!
XDieselRecalculate.exe"Added by the LAZAR TROJAN!"
XLogServicewincalc.exe"Added by the PAPROXY TROJAN!"
XMicrosoft Calculatorcalc.exe"Added by a variant of the IRCBOT TROJAN!"
NPhoto Express Calendar Checker SECALCHECK.EXE"If you create multiple Weekly/Monthly/Yearly calendars to use as your wallpaper
UPhotoExplosionCalCheckcalcheck.exe"Calendar management feature of Nova Development's Photo Explosion"
XTibiabotcalc.exe"Added by the BACKDOOR-CEP!IC BACKDOOR! Note - this is not the valid Windows calculator which resides in %System% and will not normally figure in Msconfig/Startup! This version resides in %Windir%"
NUlead Calendar CheckerCalCheck.exe"Ulead Calendar Checker - part of Ulead Photo Express - automatically replaces your calendar desktop wallpaper on a weekly/monthly/yearly basis if you've created them. Not required - change them manually"
NUlead Photo Express Calendar Checkercalcheck.exe"If you create multiple Weekly/Monthly/Yearly calendars to use as your wallpaper
NUlead Photo Express x.0 Calendarcalcheck.exe"Ulead Calendar Checker - part of Ulead Photo Express

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.