Overview - query.dll Information

What Causes query.dll Errors ?

The query.dll file error occurs for a number of reasons. The usual messages you will see when the error appears look like these:

• ""This application failed to start because query.dll was not found. Re-installing the application may fix this problem.""
• ""Cannot start [APPLICATION]. A required component is missing: query.dll. Please install [APPLICATION] again." "

The warning messages imply that the dll file cannot be found, or more specifically, the path of the file cannot be accessed; thus, the file becomes unreadable and non functional. There are also circumstances wherein the file has been removed or misplaced accidentally. When an application has been uninstalled or installed recently, the dll file could have been overwritten. Another possible cause of this error could be registry. Troubleshoot the source of the problem and then initiate the correct fix for them. Methods for doing so are outlined next.

What is Dll?

DLL (dynamic link library) files can be described as small "sub-programs" meant to help a bigger program run well. They provide the main (executable) program on which they are based with a means of linking to the various hardware and software resources it needs at various points in its run-time sessions, on an "as the need arises: basis. This eliminates the need to load everything to do with the main executable program onto the computer's RAM (random access memory) when that program is first run. The software resources carried by dynamic link libraries include code for the various program functions that are not really needed to keep the program running (that is, functions that only need to be called upon at certain times during a given computing session, and might actually not even need to be called upon at all). Loading those functions (and there can be a considerable number of them for a given program) onto the computer's RAM when the program is first run, and then keeping them there throughout the session, would be a waste of RAM space, which is considered to be at a premium.

How To Fix query.dll Errors ?

What you need to do first when you have this error in your system is to identify the variables that are causing it to manifest. Defective applications are known causes of the query.dll error. In such cases, you need to re-install these guilty programs and replace them with new versions. When reinstalling damaged programs, you need to first click on Start on your Windows Bar. Following this, choose Control Panel then select Add/Remove Programs or Programs and Features. A list of programs would then populate on your screen, from which you need to choose the problematic application in your PC. Remove this application by clicking on the Remove or Uninstall tab. Next, follow the uninstall instructions that would be flashed on your screen. After the program has been successfully removed from your computer, refresh your settings by restarting your PC. After this, install a fresh copy of the application in your PC by inserting a CD installer in your computer's CD/DVD drive.

query.dll errors are also caused by the "registry" of Windows. This sector in your PC stores settings and files, some of which are essential, while most are redundant. The data stored in your registry accumulates the more you use your computer, especially if you heavily use the Internet, since most websites contain cookies that leave files in your registry. Applications also contribute to this problem, by placing add-in files in your registry that do not go away by themselves. Useless settings and files in this sector of your PC only slows down your computer, causing applications or programs to crash and errors to surface. To clean up your registry of unnecessary files, you need to use a registry cleaner, which is a program that is specially designed to scan and remove redundant settings in your system.

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