What is apphelp.dll error? Apphelp.dll stands for Application Compatibility Client Library of Microsoft Windows operating system developed by Microsoft Corporation. The associated files of apphelp.dll contain apphelp.dll.mui, AppHelper.dll, apphelperlib.dll and apphelp_xp.dll. The problems listed below can possibly lead to apphelp.dll:

Missing or damaged apphelp.dll
Apphelp.dll install failure
Incompatible version of apphelp.dll
Damaged apphelp.dll removal/repair failure
Driver update failure
Missing or damaged driver files
Invalid version of driver files
Cyber threat attacks
Unwanted registry components
Damaged or missing registry files

Why do you have to fix apphelp.dll error immediately?
Once your computer is experiencing apphelp.dll error messages, you may also consider solving a list of further undesirable system problems.
Substantial reduction in system performance
Unexpected Blue Screen of Death errors
Black Screen of Death errors with driver file details
Software instability
Third- party application uninstall failure
Windows files update failure
Increasing times of program crashes
Windows components removal failure
System security problems

Common apphelp.dll error messages:
Apphelp.dll Not Found
This application failed to start because apphelp.dll was not found. Re-installing the application may fix this problem.
Cannot find [PATH]\apphelp.dll
The file apphelp.dll is missing.
Cannot start [APPLICATION]. A required component is missing: apphelp.dll. Please install [APPLICATION] again.

How to fix apphelp.dll error efficiently?

Solution One: Re- register apphelp.dll file.
It is suggested to re- register apphelp.dll file under the circumstances that the file hasn’t been missing or damaged by cyber threat attacks, you may consider following the instructions listed below:
For Windows XP user:
Step One: Click Start, and then go to Run.
Step Two: Type cmd onto the latest dialog box and press Enter button to enable Command Prompt utility.
Step Three: Type regsvr32 apphelp.dll onto the Command Prompt window as soon as it pops up.
Step Four: Press Enter to confirm the modification.
For Windows 7 user:
Step One: Click Windows or Start if you are using Classic theme.
Step Two: Type cmd onto the latest search box above Windows menu.
Step Three: As soon as the Command Prompt appears on the screen, type
regsvr32 apphelp.dll
Step Four: Press Enter.

Solution Two: Replace it with a compatible one from cyber space.
Step One: Download the compatible version of apphelp.dll from network.
Step Two: Save it onto a hard disk. And then go to the folder C:\WINDOWS\system32.
Step Three: Locate the problematic version of apphelp.dll on your computer.
Step Four: Rename the current version of apphelp.dll with a name you like.
Step Five: Copy & paste the compatible version into the folder C:\WINDOWS\system32.
Step Six: Click Start and then head to Run.
Step Seven: Type cmd onto the latest pop- up and press Enter button to go into the Command mode. (In Windows 7, type cmd onto the latest search box above Windows menu.)
Step Eight: Type “regsvr32 apphelp.dll” onto Command Prompt and then press “Enter” button.

Solution Three: Or you can replace the apphelp.dll file with the original version. You can do this from Windows XP Recovery Console.
Here are the steps:
Step One: Insert Windows XP installation CD to your PC and then boot it.
Step Two: From Welcome to Setup, press R to enable Recovery Console utility.
Step Three: Choose the Windows XP installation you need to fix and complete the administrator password if it asks. Then the Recovery Console utility appears on the screen.
Step Four: Type cd system32 when command prompt pops up and press Enter to change to the system32 directory.
Step Five: Type ren apphelp.dll msderun.old.dll and press Enter to rename the apphelp.dll file.
Step Six: And then type CD-ROM_or_DVD-ROM_Drive_Letter: and press Enter to point to the CD-Rom drive. Here, CD-ROM_or_ DVD-ROM_Drive_Letter letter points to the drive letter of your CD_ROM or DVD_ROM drive.
Step Seven: Type cd \i386, and then press Enter to change to the i386 directory on the CD.
Step Eight: Type expand msderun.dl_ BootDriveLetter:\windows\system32 and then press Enter to change to extract the original apphelp.dll file from the Windows XP CD and copy it to the system32 directory on your Windows XP computer.

Solution Four: Keep Windows up- to- date.
The automatic Windows update is classified as a useful solution to get rid of apphelp.dll error for it can help the computer safely replace the problematic apphelp.dll file with an error- free copy:
Step One: Click Start.
Step Two: And then go to Control Panel.
Step Three: Enable the Windows Update utility.
Step Four: Follow the instruction to install AxtiveX and click “Install” to install Windows Update utility.
Step Five: Install all of the updates.
Step Six: Restart PC.

Solution Five: Fix registry problems efficiently.
The Windows registry is responsible for preserving system settings and options for Windows operating system, including kernel running situation, SAM, device driver details and third- party software. Unneeded registry components, missing or corrupt registry files and obscure registry errors can easily result in invalid Windows registry which is classified as the main reason for a list of annoying system problems, especially .exe file corruption. On purpose to fix apphelp.dll error, you should firstly get rid of registry problems.

How to get rid of registry problems totally? An efficient solution for undesirable registry problems is to enable a trusted registry repair tool on your computer. A trusted registry repair tool combines with a package of comprehensive and professional services that can help you efficiently get rid of undesired registry problems through completely wiping out unneeded registry components, repairing corrupting registry files and fixing obscure registry errors. How to fix apphelp.dll error and get rid of undesired registry problems easily?

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