Every computer with any version of Microsoft Windows operating system installed has a registry. The system registry holds almost all the information about your computer in .dll files.

Many computer users notice that after a short time, their computer is not working the same way it used to. Part of the reason for this is your system registry. Often times, invalid dll files in your system registry caused by either software that is no longer in use or software that was not removed properly that can lead to a disruption in the normal operation of your computer. Improperly removing software from your computer can cause DLL files that are also used by other applications to be deleted or partially deleted as well. When this happens, the other applications on a computer can no longer run properly because part of the coding that is used by these other programs can no longer be found by the application. Re-installing software that has been recently removed from the computer may help to eliminate DLL errors associated with corrupted DLL files. Re-installing the software program will usually also re-install the DLL files associated with that particular program, allowing other applications that share the information in the DLL files to resume their normal operating functions.

. Sometimes a computer application that requires a particular DLL file to function properly will find an incomplete file while searching for necessary information. When this happens, the program you are using will try to load the incomplete or corrupted file even if a complete file is also installed in the system registry. Removing these disrupted dll files can also often restore your computer to its former productivity.

Along with your system registry, there are also several other areas where corrupted dll files could be the reason for error messages in programs such as activeX, windows explorer, internet explorer, windows installer and outlook. Other signs that you may have invalid dll files in your system registry include dll issues, system32 errors, runtime errors, EXE errors and SVChost errors as well as many other sytem issues and errors. Often times, these files have had their extensions changed and simply registering the files with the appropriate DLL extensions will enable computer applications to find the files for use and eliminate many common computer errors. In some cases, however, replacing the damaged DLL files may be necessary for some computer programs to function properly again.