File rundll32.exe missing

Similar Questions

• run missing files rundll32.exe missing. Unable to open many programs

  Infection Trojan horse on Sunday, McAfee detected and removed on Monday.  run missing files missing rundll32.exe can't open most of the programs without having to 'open with' quick screen.  Have tried the solutions to similar problems, without success.  Cannot use the restore system or clickfree. AM running xp service pack 3, any suggestions?

  He hides on your part.

  The dllcache folder is a hidden system folder (normally).

  The dllcache folder is where XP keeps copies of important system files.  Windows file protection monitors these files when your system is working and if it happen never disappeared, PAM quickly and quietly replace it using the copy in the dllcache folder - this is why you put the rundll32.exe file in both places...  One in the dllcache folder is the backup.

  If you want to use Windows search, you need to go to the Advanced Options section and select the search system folders and enable folders and files hidden research.

  If you use Solution Explorer, while you're looking in the c:\windows\system32 folder, you must:

  Click on tools
  Click on the folder view tab Options
  Enable: Display the hidden files and folders
  Disable (uncheck): Hide extensions of known file types
  Disable (uncheck): Hide protected operating system files

  Then, you'll be able to find and navigate in the dllcache folder.

  When you are finished, you can set your options to view back the way they were then you don't have an accident one day in one of these folders.

• Windows cannot find c:\windows\system32\rundll32.exe Missing entry: runDLLEntry

  Found 14 windows boxes are open and running in the background that rather slows down the operation of the computer.  Not sure if above the entrance that comes up when I go to the line is the cause.   Help

  Go to the control panel
  Folder options
  View tab
  Highlight: uncheck "Hide protected operating system files" and click on apply, click OK

  Go to the menu 'start '. Click on 'my computer '.
  Double-click the disk "C:".
  Double-click the "Windows" folder
  Double-click on the "System 32" folder.
  Double-click the "Dllcache" folder
  Locate the Rundll32.exe file, right-click on it and select "copy".
  Click on the 'Back' button in Windows Explorer to return to the "System 32" folder.
  Right-click any open space, and then click "Paste".

  Back to: check "Hide protected operating system files" and click on apply, click OK

  If rundll32.exe is not in the dllcache folder do the following:

  Press the Windows Logo keys and run R to open the control box.
  Type: sfc/scannow and click OK.  (there is a space between c and /)
  Insert the operating system CD when you are prompted.
  Windows will replace any missing files.

  Return to the dllcache file rundll32.exe should now be there, copy it, then paste it into

  the "System 32" folder.

• Lost files: rundll32.exe

  I accidentally put my port of the printer to the incorrect port so the computer cannot find the printer.  During the attempt to reset port, procedure requires the choice 'System' in the control panel.  But I get the message: C:\windows\system32\rundll32.exe is not found.  What should I do to recover the file rundll32.exe?

  http://www.dll-files-download.com/R/2008-01-13/15185.html

  You can download the file here, do not click on download the missing DLL click Download this file down. Next page, ignore the box and click Download now under him. Save the file and when you unpack it point the file to C:\windows\system32

• When the operating system starts, a window opens asking me to "choose the program you want to open this file: file: rundll32.exe.".

  original title: 'Open with' problem...

  My office was attacked by malware. I have run virus scan and all updates that were available. When the operating system starts, a window opens asking me to "choose the program you want to open this file: file: rundll32.exe.". There are recommended programs and other programs, but I'm fairly certain that none of them are correct. Can anyone help direct me in the right direction to solving this problem? Every program I try to open, translates into an opening by asking the same question, but the file name changes to whatever program I am trying to the window. Thanks in advance for any help.

  Hello

  Just in case there are persistent pieces of malware here is the method of complete elimination.
  .exe question difficulty in the next message.

  Try Mode safe mode with networking - repeatedly, press F8 that you start.

  The best two methods allow scanners to run and/or AV.exe out of the way or removing.

  1.
  CTRL SHIFT ESC - task manager OR right click on the taskbar - task manager

  Process tab - complete the process on AV. EXE and continue with the uninstall Guide.

  If necessary use start - computer or Windows Explorer to navigate to

  C:\Program Malwarebytes Anti - Malware\mbam.exe or where it is installed - if
  necessary right click on the shortcut of Malwarebytes - Properties - tab - target line to see where it
  is installed.

  Right-click on it and rename it to ZZMbam.COM (or something different than now) and
  Double-click it, and then run it like this. You can rename it back later. Do the same with
  other programs according to the needs. Use this method to others as needed - NOT assume all
  a program deletes all or that it is no other malicious software.

  ---------------------------------------------------

  2.
  Another method is to use them:

  Use Process Explorer to "Suspend" the process will not stop

  Then use AutoRuns to delete the malicious program startup items.

  Now use UnLocker to delete the files in the malware.

  You may need to do a file at a time.

  Process Explorer - free
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  AutoRuns - free
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx

  UnLocker - free (do not install the adaware Ebay)
  http://www.Softpedia.com/get/system/system-miscellaneous/unlocker.shtml

  AV.exe

  ==============================================

  The AV.exe malware goes by many names:
  
  XP Internet Security 2010, Antivirus 2010 Vista and Win 7 Antispyware 2010 are thugs
  antivirus, scams for you force to pay for them while they have no advantage at all.

  How to remove Vista Antivirus 2010 as well as the other varieties AV.exe.
  http://www.bleepingcomputer.com/virus-removal/remove-antivirus-Vista-2010

  RENAME this as necessary to allow them to perform: (use a different name with the extension .COM instead of .exe)
  
  It can be made repeatedly in Mode safe - F8 tap that you start, however, you should also
  Run them in regular Windows when you can.

  Download malwarebytes and scan with it, run MRT and add Prevx to be sure that he is gone.
  (If Rootkits run UnHackMe)

  Download - SAVE - go to where you put it-right on - click RUN AS ADMIN

  Malwarebytes - free
  http://www.Malwarebytes.org/

  Run the malware removal tool from Microsoft

  Start - type in the search box-> find MRT top - right on - click RUN AS ADMIN.

  You should get this tool and its updates via Windows updates - if necessary, you can
  Download it here.

  Download - SAVE - go to where you put it-right on - click RUN AS ADMIN
  (Then run MRT as shown above.)

  Microsoft Malicious - 32-bit removal tool
  http://www.Microsoft.com/downloads/details.aspx?FamilyId=AD724AE0-E72D-4F54-9AB3-75B8EB148356&displaylang=en

  Microsoft Malicious removal tool - 64 bit
  http://www.Microsoft.com/downloads/details.aspx?FamilyId=585D2BDE-367F-495e-94E7-6349F4EFFC74&displaylang=en

  also install Prevx to be sure that it is all gone.

  Download - SAVE - go to where you put it-right on - click RUN AS ADMIN

  Prevx - Home - free - small, fast, exceptional CLOUD protection, working with the other security
  programs. It is a single scanner, VERY EFFICIENT, if it finds something come back here or
  Use Google to see how to remove.
  http://www.prevx.com/   <-->
  http://info.prevx.com/downloadcsi.asp  <-->

  Choice of PCmag editor - Prevx-
  http://www.PCMag.com/Article2/0, 2817,2346862,00.asp

  Try the demo version of Hitman Pro:

  Hitman Pro is a second scanner reviews, designed to save your computer from malicious software
  (viruses, Trojans, rootkits, etc.). who infected your computer despite safe
  what you have done (such as antivirus, firewall, etc.).
  http://www.SurfRight.nl/en/hitmanpro

  --------------------------------------------------------

  If necessary here are some free online scanners to help the

  http://www.eset.com/onlinescan/

  New Vista and Windows 7 version
  http://OneCare.live.com/site/en-us/Center/whatsnew.htm

  Original version
  http://OneCare.live.com/site/en-us/default.htm

  http://www.Kaspersky.com/virusscanner

  Other tests free online
  http://www.Google.com/search?hl=en&source=HP&q=antivirus+free+online+scan&AQ=f&OQ=&AQI=G1

  --------------------------------------------------------

  Also follow these steps for the General corruption of cleaning and repair/replace damaged/missing system
  files.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type this into the search-> find COMMAND to top box and RIGHT CLICK-
  RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker
  (SFC.exe) program generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Run checkdisk - schedule it to run at the next startup, then apply OK your way out then
  turn it back on.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -----------------------------------------------------------------------

  If we find Rootkits use this thread and other suggestions. (Run UnHackMe)

  http://social.answers.Microsoft.com/forums/en-us/InternetExplorer/thread/a8f665f0-C793-441A-a5b9-54b7e1e7a5a4/

  I hope this helps.

• Rundll32.exe missing, unable to reinstall open rundll32.exe or .exe files

  Then I looked around and discovered I had a virus, XP Security, erased rundll32.exe when it was faded.  Now, I found another copy on my computer to ISO recovery that accompanies it (thank you, MSI), but it is useless, because I can't OPEN. EXE FILES.  I had internet explore to open internet Explorer by selecting in the menu open with that appears whenever I open a .exe file, and that worked for a few other programs (World of Warcraft, as well, mainly to test).

  So, what should I do to open Rundll32.exe when my computer won't let me choose Rundll32.exe as a program to open Rundll32.exe with.  I select it in the open with menu by means of travel, and it does not appear in the list of programs that I can use, such as Internet Explorer and wow.

  I wanted to talk to someone on the phone for 5 minutes to understand this point, but that costs 20% of this cost my computer ($50, im on a netbook).  Come on, $ 50?  really, microsoft?

  Thank you for your response. Here's my problem. I'm on a laptop at the moment. My problem is with my desktop windows xp home edition. I can't access a Web site or make it appear an address bar imput your link. Whenever I click on internet explore or itunes or whatever it is that must be open to the top, I get the 'open with' box and it says: "choose the program you want to use to open this file. I tried to remove the rundll32.exe and go back in the folder.

  When I go to the c\windows\system32\rundll32.exe folder and remove the file, I go back to the results of the research, and he returned in the results of research after a few seconds.

  Thanks again.

  The goal is to not do not delete the rundll32 permanently, but replace it with a replacement valid. If your MAP replaces the file then it is useless to continue to delete.

  That said, the best way to solve this problem is to use a flash (USB drive) drive or other removable media to download and run the file on the link I gave you. However, if you do not have access to removable media, you can try to manually reassociate the executables.

  CTRL-ALT-DEL and open Task Manager.  Once there, click file, and then hold down the CTRL key and click New task (run).  This will open a command prompt window. On the command line type assoc.exe = exefile > press ENTER. You should receive a prompt action succeeded.

  Looks like your shortcuts can have been so separated. On the command line type assoc.lnk = lnkfile > press ENTER.

  Click on the link below, download, update and perform a full scan with Malwarebytes.

  Malwarebytes.org

  How to use Malwarebytes

• Application of C:\Windows\system32\rundll32.exe missing on Vista Home premium computer

  C:\Windows\system32\rundll32.exe Application missing - this is the error I get trying to start programs from the start menu. Also, I get errors on the .exe files in the control panel. I can't pull up in my sound options to change the speakers to the headphones, it affects everything. I have the rundll32.exe file but for some reason it isn't let me pull up anything. I can pull some things as an administrator. Most of the programs will shoot to the top of the window 'Open with' and I don't really know what opens to some things, like the sound options window. What is the cause? And how can I solve this problem?

  Hello

  If you get the rundll32 error:

  What is rundll32.exe and why it works?
  http://www.howtogeek.com/HOWTO/Windows-Vista/what-is-rundll32exe-and-why-is-it-running/

  What is the suspicious Rundll32.exe process?
  http://WindowsXP.MVPs.org/Rundll32.htm

  -----------------------------------------------------

  Try these to erase corruption and missing/damaged file system repair or replacement.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type in the search - find top COMMAND - made box an CLICK RIGHT-
  RUN AS ADMIN

  sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe)
  program generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Then run checkdisk - schedule it to run at the next startup, then apply OK your way out then
  turn it back on.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -----------------------------------------------------

  If no joy trying to determine what is the cause:

  How to troubleshoot a problem by performing a clean boot in Windows Vista
  http://support.Microsoft.com/kb/929135
  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes without doing anything - then right
  Click on taskbar - task manager - take a look at stored by - Services - process - this
  is a quick reference (if you have a small box at the bottom left - show for all users, to consult
  that).

  How to check and change Vista startup programs
  http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

  A quick check to see who are loading is method 2 - using MSCONFIG then after a
  a list of these here.

  --------------------------------------------------------------------

  Tools that should help you:

  Process Explorer - free - find out what are the files, registry keys and other objects processes have
  Open, which DLLs they have loaded and more. This exceptionally effective utility will show same
  you who owns each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured so that it starts automatically when your
  system boots and you log in. Autoruns shows you the complete list of files and registry locations
  where applications can configure Auto-start settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor the system files, registry, process, thread and DLL activity in
  in real time.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  -Free - WhatsInStartUP this utility displays the list of all applications that are loaded
  automatically when Windows starts. For each request, the following information
  appears: product Type of startup (registry/Startup folder), Command - Line String,
  Name, file Version, company name, location in the registry or the file system and more.
  It allows you to easily disable or remove unwanted programs that run in your Windows
  startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe not.
  The window Watcher says it all, every window created by all programs that are running, the statement
  If the window is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  Hope these helps.

  Rob - bicycle - Mark Twain said it is good.

• This affected my vista pc file Rundll32.exe

  Hai,

  When I opened my vista operating system, I can't show my destop, start menu & extra, I'll try to change some customize rundll32 cannot continue coming error please such right way thank you

  Hello

  What is rundll32.exe and why it works?
  http://www.howtogeek.com/HOWTO/Windows-Vista/what-is-rundll32exe-and-why-is-it-running/

  What is the suspicious Rundll32.exe process?
  http://WindowsXP.MVPs.org/Rundll32.htm

  -----------------------------------------------------

  Try these to erase corruption and missing/damaged file system repair or replacement.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe)
  program generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Then, run checkdisk - schedule it to run at next boot, then apply OK your way out, then restart.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -----------------------------------------------------

  If no joy trying to determine what is the cause:

  How to troubleshoot a problem by performing a clean boot in Windows Vista
  http://support.Microsoft.com/kb/929135
  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes without doing anything - then right
  Click on taskbar - task manager - take a look at stored by - Services - process -.
  It's a quick reference (if you have a small box left - show for all users, then
  Check that).

  How to check and change Vista startup programs
  http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

  A quick check to see who are loading is method 2 - using MSCONFIG then after a
  a list of these here.
  --------------------------------------------------------------------

  Tools that should help you:

  Objects of process Explorer - free - find out what files, registry keys and other processes
  have open, which DLLs they have loaded and more. This exceptionally effective utility will be
  even show you who owns each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured so that it starts automatically when your
  system boots and you log in. Autoruns is also the full list of registry and files
  locations where applications can configure start automatic settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor the system files, registry, process, thread and DLL activity
  in real time.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  -Free - WhatsInStartUP this utility displays the list of all applications that are loaded
  automatically when Windows starts. For each request, the following information
  appears: product Type of startup (registry/Startup folder), Command - Line String,
  Name, file Version, company name, location in the registry or the file system and more.
  It allows you to easily disable or remove unwanted programs that run in your Windows
  startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe not.
  The window Watcher says it all, every window created by all programs that are running, the statement
  If the window is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  Hope these helps.

  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• file msnmsgr.exe missing in Windows Live Messenger

  I am trying to install Windows Live Messenger on my laptop Vista Enterprise 4.1. The download and the installation went correctly, but when I try to run the Messenger by clicking on the shortcut, it gives me an error that the computercan not locate 'msnmsgr.exe' file. I also checked "C:\Program Files\Windows Live\Messenger\" file, but the file does not exist there.

  I am downloading directly from Microsoft and have cleaned my computer, clean the registry and have tried the download/install several times.

  Help, please.

  The only way to get the hidden folder is to type-

  "C:\Users\usernamexxxx\AppData\Local\Microsoft\Windows\Temporary Internet Files\Virtualized\C\Users\usernamexxx" typed in the box to begin running with the username correct and entire line including the quotes.   You can't navigate past the Temporary Internet Files folder by clicking on folders and try to go like this.

  What you might try is to uninstall Messenger Live and re-download the file wlsetup - web.exe from this link (to avoid the non-Microsoft links).

  Windows Live Essentials
  http://explore.live.com/Windows-Live-Essentials?OS=other

  SAVE the file wlsetup - web.exe on your drive hard (do not run it from the server).  Locate wlsetup - web.exe on your hard disk and start the whole installation by right clicking on the .exe and the option to choose "run as Administrator".

  Before you do the above, it would be wise to disable temporarily any scanner in real time that you use, as they may interfere with a successful installation.

  Windows Live people may be able to help.

  Portal Messenger
  http://windowslivehelp.com/product.aspx?ProductID=2

• Windows 7 files more EXE missing

  A windows 7 pro x 64 build has lost most of the .exe files all program files are still there most of the exe disappeared. Some programs are still there and the exe is still there. The event logs, see the update over 200 windows installed in less than a second, and he lost his relationship of trust to the field. Any ideas?

  Hey Danny,

  The question you posted would be better suited in the TechNet Forums.

  I would recommend posting your query in the link below:

  http://social.technet.Microsoft.com/forums/en-us/categories

• On the computer of the opening, this message: c:\windows\system32\rundll32.exe.

  I searched the drivers and utilities cd that came w/my computer and the operating system cd and do not find this file there.  Don't know what to do from this point on.  Cannot remove programs without this file.  Thanks for any help!

  When you try to open a control panel applet, you see a message like this:

  Control Panel
  Windows cannot find 'C:\WINDOWS\system32\rundll32.exe '.  Make sure you typed the name correctly and then try again.  To search for a file, click the Start button, and then click search.

  If the file is actually missing, it was probably quarantined (actually deleted) by some program antivirus or antimalware you use.

  You might want to reconsider some anti-virus or anti-malware software, you use and whether or not they are effective to protect your system.

  You can look in the c:\windows\system32 folder and see if the file is actually missing or not, but if it is really missing, you must replace it somehow.

  Since the file is one of the protected files 3498 who cares about XP, needed a backup copy of the file on your system in a few other cases.  You must do what the message says and search for the file.

  Click Start, search, for files and folders... and in the search box, enter:

  Rundll32.exe

  The click the search button to search for you the hard drive for a copy of the missing file.

  You can find a copy of the file that is missing in these folders:

  c:\Windows\System32\dllcache
  c:\windows\ServicePackFiles\i386

  If you find a copy in one of these two files, copy and paste it in the c:\windows\system32 folder.  There may be other files rundll32.exe on your system of MS updates, but they can only be those you need (they could work maybe).

  Answered in the affirmative if invited to replace the existing file.

  If you cannot find a copy of the file in one of these two places, there is one on my SkyDrive, you can download.  Here's how:

  I downloaded a copy of XP Pro SP3 file you need on my SkyDrive (everyone has a SkyDrive for file sharing).

  You can download it and when you do, place a copy of the file in these two folders (assuming that Windows is installed on your C drive):

  c:\Windows\System32
  c:\Windows\System32\dllcache (this is where XP keeps backups of important files).

  Here is the link to my SkyDrive and you can get the file you need here:
  https://SkyDrive.live.com/?CID=6a7e789cab1d6f39&ID=6A7E789CAB1D6F39! 311

  When you see the files available for download, you can not see the file extension (.exe, .dll, .cpl, .sys, .zip, etc.), but when download you them they will have the right extension.

  When you download the file (especially if you use Internet Explorer), when you get a chance to save the file, your browser is unable to save the file with an extension (by example, .exe, .dll, .cpl, .sys, .zip, etc) then you will need to manually add the extension appropriate to the file when you download the file before you save it.

  You can download the file without the extension, and then rename the file to add the appropriate extension.  You do not want to use a file called rundll32 when the name of the file should really be called rundll32.exe (if the downloaded file has no extension, you will need to change the name of the file to add the appropriate extension to make it work.

  You then put the downloaded files in the correct folders on your system.

  Note that advice to run sfc/scannow will not replace a file rundll32.exe missing in the system32 folder.  If you need to prove that to yourself, I also have instructions for it.

• Miss me the windows system32 rundll32.exe. I can't access the Add/Remove in the control panel.

  original title: missing file

  Miss me the windows system32 rundll32.exe. I can't access the Add/Remove in the control panel.

  I tried to start - run with my c/d operating system

  I checked for viruses

  I purchase software to remove etc and REG files.

  Now that the devil do?

  Thank you

  If this

  I tried to start - run with my c/d operating system

  means that you have tried to use sfc/scannow from start > run, your experience is not surprising.  This 'solution' is often suggested by people who don't really understand what this command does.  It does not help to restore a missing rundll32.exe file.

  For what is

  I checked for viruses

  What is the name and version of your anti-virus application?  When (approximately) their subscription expires? What other antimalware applications installed?  What other antimalware applications you used recently to scan your computer?

  If you have not yet used the "software to remove the REG files and etc." return for refund or throw it out.  "Registry cleaners", 'tuners', etc. are not useful.  If you used to "clean" the registry, use its "undo" feature (if it has one) to restore the registry.  Longtime MS MVP PA Bear:

  TIP: If you still think again your registry database must be cleaned, repaired, amplified, to the point, healed, twisted, fixed, enlarged, "swept" or optimized (it isn't), read http://aumha.net/viewtopic.php?t=28099 and draw your own conclusions. See also http://blogs.technet.com/markrussinovich/archive/2005/10/02/registry-junk-a-windows-fact-of-life.aspx

  What probably happened is that your antivirus application deleted or quarantined in your file rundll32.exe thinking he was infected.  He could have, but probably not.  In any case, read the post that begins, "That 'solution' is not on my list." in the following thread: http://answers.microsoft.com/en-us/windows/forum/windows_xp-performance/systemrundllexe-not-found/6e30aff2-a88e-4d86-a654-753d54f632d1 you can also read the rest of the posts in this thread.

  Note that c:\windows\system32\dllcache is a hidden folder, but you who type in the address bar of Windows Explorer (or copy and paste), the folder should open anyway.

  Assuming you manage to restore rundll32.exe, download, install, update and run full scans (not at the same time) with each of the following free tools.

  MalwareBytes AntiMalware
  SUPERAntiSpyware

• Windows cannot find C:\WINDOWS\system32\rundll32.exe

  Hello

  Can someone help me, I am trying to open files and folders, and all I get is Windows can't find C;\WINDOWS\system32\rundll32.exe and stop me so gains access. I was told that I could find the file on another computer stick in my memory stick and reapply, only problem I have is I don't know where its located. I'm on windows XP.

  Thank you very much

  Thanks for the suggestion, Lisa!  I tried the link but it says page is more noticed.

  You happen to know any other solution for that darn missing file?  I can't open all the apps in my control panel! ACK!

  Someone found a solution to this problem yet?  Thanks a lot for any attempt to answer!

  :)

  EDIT: I GOT IT!  Browsing the internet, I came across this answer:

  Find a copy of rundll32.exe in the folder c:\windows\system32\dllcache or c:\windows\servicepackfiles\i386.
  If you find it, go ahead and copy rundll32.exe in the c\windows\system32 of the system folder.

  Otherwise you need a windows disk to extend this fichier.* *.

  I have dd a search on my computer for the file "rundll32.exe" and he came in two different folders on my hard drive.  But it MUST be in c:\windows\system32 (file there lack of).  I found the file in the folder dllcache as shown above, then simply copied and pasted in the system32 folder.  And WALLAH!  Problem solved and control panel and all the rest works just fine now!  So simple!  I hope it works for you, the people who are still struggling with this problem!

• C:Windows/system32/rundll32.exe - Application not found - OK__I get this error message when you try to open a program

  Error messages occur now - seem to appear now, after I did a Defrag.  If I try to open AOL, it brings me to a display list who wants to choose from a list of programs.  For AOL, I click on AOL.  I didn't used to have to select from a list of display.  Then I tried to open an Astrology program and it took me to the same list, which of course is not.  Now, I get the same error as follows: C:Windows/system32/rundll32.exe - Application not found - OK

  Here's a Plan:

  Goto, start system restore restore Menu\All Programs\Accessories\System Tools\System

  Now select the oldest Restore Point and restore your computer, but first make sure that you have an external drive.

  After that C:\Windows\System32\Rundll32.exe copy the external drive and the disc is ejected

  Open the system restore and undo restore

  After the undo operation is copy the Rundll32.exe in the road to C:\Windows\System32

  and the problem solved

  Note: the rundll32.exe should be missed recently and you should have an old Restore Point which contains a file Rundll32.exe Intact

• C:/Windows/System/32/rundll32.exe - application not found. ____

  When I try and open any application on my PC, I get the error message "choose a program to open this file with. I have not even that by trying to open the cmd window or all the apps in the control panel. I think I have a virus, but can not run any antivirus programs as they all won't open no - needs an application to open it with. I can not open IE. I copied the file rundll32.exe from another machine, but that has not solved the problem. I had the "XP security Suite" virus which I have tried to clean with the help of several anti-virus software. Can anyone help?

  Using Windows Explorer, try to navigate to \Windows\System32, right-click on cmd.exe, then choose open. If that doesn't work try to use the command.com program. Now, type assoc .exe = exefile and press ENTER. You may have to restart the computer.

  Then run MBAM.