How to remove rundll32 error
The free file information forum can help you find out if rundll32.exe is a virus, trojan, spyware, adware which you can remove, or a file belonging to a Windows system or an application you can trust.
Click to Run a Free Scan for rundll32.exe related errors
rundll32.exe file information
The process Run a DLL as an App or myRunner or Executar uma DLL como uma aplicação or Een DLL-bestand als toepassing starten or Eine DLL-Datei als Anwendung ausführen or Kør en DLL som et program or FTP Serv-U Daemon or url or Exécuter une DLL en tant qu'application or Ejecutar un archivo DLL como una aplicación or Windows host process (Rundll32) or Kör en DLL-fil som ett program or Bir DLL'i Uygulama olarak çalýþtýr belongs to the software Microsoft® Windows® Operating System or bsVirus or MicrosoftR WindowsR Operating System or HanSoft myRunner or rundll32.exe or Microsoft(R) Windows(R) Operating System or explorer or Microsoft? Windows? Operating System or Sistema operativo Microsoft® Windows® or Besturingssysteem Microsoft® Windows® or Betriebssystem Microsoft® Windows® or Operaèní systém Microsoft® Windows® or Microsoft® Windows® Operativsystem or Serv-U or Microsoft¢ç Windows¢ç Operating System or Fast Typer or url or PowerDesk or Proccess ID or Système d'exploitation Microsoft® Windows® or rundll32.exe or Microsoft(R) Windows (R) 2000 Operating System or Operativsystemet Microsoft® Windows® or Outerinfo or Project or Operacni system Microsoft® Windows® or Microsoft® Windows® Ýþletim Sistemi or Microsoft® DRM or rundll32.exe" -vt yazb by Microsoft Corporation (www.microsoft.com) or Tastysoft SD or HanSoft or Cat Soft (www.cat-soft.com) or url or skb.
Description: File rundll32.exe is located in the folder C:\Windows\System32. Known file sizes on Windows XP are 33280 bytes (87% of all occurrence), 31744 bytes, 44544 bytes, 34816 bytes, 33792 bytes, 32768 bytes, 1371648 bytes, 32256 bytes, 1254400 bytes, 610304 bytes, 537088 bytes, 40448 bytes, 61952 bytes, 1304064 bytes, 143872 bytes, 10240 bytes, 10000 bytes, 1359872 bytes, 36864 bytes.The file is a Windows system file. It is a trustworthy file from Microsoft. Therefore the technical security rating is 4% dangerous, however also read the users reviews.
Recommended: Identify rundll32.exe related errors
If rundll32.exe is located in a subfolder of C:\Windows then the security rating is 82% dangerous. File size is 78336 bytes (15% of all occurrence), 60004 bytes, 81408 bytes, 80384 bytes, 69632 bytes, 36352 bytes, 31246 bytes, 34816 bytes, 35328 bytes, 51238 bytes, 70344 bytes, 61545 bytes. The program is not visible. The file is located in the Windows folder, but it is not a Windows core file. rundll32.exe is not a Windows system file. There is no information about the maker of the file. The process starts upon Windows startup (see Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Runonce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run, C:\Windows\win.ini, HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders). File rundll32.exe is able to record keyboard inputs. rundll32.exe is able to manipulate other programs, monitor applications. If rundll32.exe is located in the folder C:\Windows then the security rating is 64% dangerous. File size is 56320 bytes (45% of all occurrence), 1264832 bytes, 57344 bytes, 135168 bytes, 58368 bytes, 18432 bytes. File rundll32.exe is a file without information about the maker of this file. The file is not a Windows core file. The program is loaded during the Windows boot process (see Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Runonce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run, C:\Windows\win.ini, HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders). It is an unknown file in the Windows folder. The program is not visible. rundll32.exe is able to monitor applications, record inputs, hide itself. If rundll32.exe is located in the folder "C:\Program Files\Common Files" then the security rating is 80% dangerous. File size is 178180 bytes. If rundll32.exe is located in a subfolder of "C:\Program Files" then the security rating is 51% dangerous. File size is 772212 bytes (25% of all occurrence), 187904 bytes, 24576 bytes, 401408 bytes. If rundll32.exe is located in a subfolder of C:\Windows\System32 then the security rating is 81% dangerous. File size is 26112 bytes (50% of all occurrence), 112716 bytes. If rundll32.exe is located in a subfolder of "C:\Documents and Settings" then the security rating is 82% dangerous. File size is 46592 bytes. External information from Paul Collins:There are different files with the same name:
- "BatInfEx" can run at start up. Displays battery status information on an IBM Thinkpad
- "LoadPowerProfile" definitely not required. Added by the MIROOT WORM! Note - do not confuse with the valid LoadPowerProfile entry which has "powrprof.dll" appended to the command/data line
- "Rundll32" definitely not required. Added by the DVLDR TROJAN! Note - this is not the valid "Rundll32.exe" as it's in the Windows\Fonts directory
- "rundll32" definitely not required. Added by the SANKER WORM! Note that the valid "rundll32.exe" resides in C:\Windows\System32 wheras this version resides in C:\Windows
- "TaskMan" definitely not required. Added by the DVLDR TROJAN! Note - this is not the valid "rundll32.exe" as it's in the Windows\Fonts directory
- "UPDATEHOOK": ??
- "Win32 Rundll Loader" definitely not required. Added by the SDBOT.A TROJAN! Note: Rundll32.exe is a valid Windows application called "Run a DLL as an App" and stored in the C:\Windows directory. The version created by this virus is saved in the C:\Windows\System directory
- "Windows DLL Loader" definitely not required.
Score
User Comments

Rave

Tam

Pierre

Peter_C_ (further information)

Billy

akshaydeep

Trapper

Trapper

kyzin

Andreas

ntkw

Now relieved. (further information)

mobilemania.8up.org

Scrin-
rundll32 scanner
Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.
Spyware Doctor detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.
Registry Booster free scans, cleans, repairs and optimizes your system.
Other processes
cthelper.exe taskman.exe stmain.dll rundll32.exe alg.exe nvsvc32.exe ctsvccda.exe qttask.exe spoolsv.exe ccproxy.exe hpsysdrv.exe [all]
Home
Files
Software
News 
jason