The Apphelp.
dll is a file error that can appear during installation of programs, removing them, booting up Windows or restarting the computer.
Since this file is vital for Windows to operate and do certain tasks for system maintenance and activities, it is a huge inconvenience when the Apphelp.
dll file malfunctions.
To repair this problem, read on to find out how.
This kind of file error usually looks like this on screen:

• "Apphelp.
  dll Not Found"
• "Cannot find [PATH]\apphelp.
  dll".
  

Most of the warnings or messages given by Windows tell the user that the file is missing in the computer system, or that the file is damaged.
Because this file is needed to open certain programs, the system will not be able to run those programs without being able to read the file.
Thus, the problem can be traced to the Apphelp.
dll being corrupted or lacking in the computer.
At other times, the computer will advise the user to attempt to re- install the program or application.
Resolve these issues by following the given instructions below.
How To Fix APPHelp.
dll Errors On Your PC The process has five steps which the user should follow properly.
One of the issues mentioned above is that the file could be corrupt or damaged.
This is usually caused by the file being an older version of Windows, so the way to fix this is by updating it.
Getting a newer version will help the system read the file that is necessary to run the programs.
Thus, the first task is to fix the Apphelp.
dll file by updating.
To do this, download the new version of the file.
Then, find the file from C:\Windows\System32folder in My Computer.
When you locate it, rename the file to "apphelpBACKUP.
dll".
Next, go to the new Apphelp.
dll file which you can find in the zip archive and extract it to the C:\Windows\System32.
After doing all these, restart the computer.
Step two should begin by knowing whether the error appears during installation of the software or when it is run.
If it is the former, then proceed to step three; otherwise, reinstall the software.
To do this, uninstall the software causing the error and install a fresh copy of it into another folder.
For step three, the user will have to repair Windows installation.
This process will not harm any of the files; it will simply reinstall the Apphelp.
dll file along with other files needed to run the program.
The ways to do this varies depending if it is Windows XP, Vista, etc.
Look for tutorials if you are not knowledgeable in doing this.
However, step four, can be an alternative to this.
It involves downloading the XoftSpySE which is an antivirus tool that is highly recommended by experts.
This program targets viruses that may have corrupted or damaged the file and repairs the errors by removing the infections.
The last step to fix this error is to clean out the registry database of your computer.
This is a central directory for all the important settings & options that your computer is using to run, and is continually being used to help your system to run much smoother & more effectively.
Despite the registry being a highly important part of your system, it's continually causing a huge number of problems for your system - especially with the various DLL files that your computer will need to use.
If you are having problems with your PC, it's essential that you clean out any registry errors that your PC has - which can be done by using a reliable registry cleaner application