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File Extensions

.DLL Files

.DLLs, or Dynamically Linked Libraries, are an integral part of executable program (.EXE) files that launch various computer-based applications.

The function of the .DLL file is to provide a communication link between the executable file and the specific hardware device that the file is associated with, such as printers and scanners. These .DLL files contain specific codes that unlock the functions of these devices and allow you to utilize their functionality through the software application.

The use of .DLL files has reduced the size of executable files which allows them to load faster and implement only functions that are needed for the specific task in hand. The .DLL file can be simultaneously used by different applications especially if they provide functions that are utilized by both the operating system and connected devices - for example a printer can be accessed by MS Word, Adobe Acrobat and QuarkXPress at the same time.

One of the advantages of .DLL files is that they are not loaded into the RAM (Random Access Memory) at the same time as the main executable program itself thereby allowing the proper utilization of RAM resources. For example, imagine using the Microsoft Office Word application; you only need to access the Print command at the time when you actually want to print the document. Therefore, the Word program will only call on the .DLL file associated with the printer at that specific time. After the printing process is completed, Word "unloads" the .DLL file to regain the previously allocated system resources.

Opening .DLL Files

Before opening one of these file extensions ensure it comes from a source you trust, you have good anti-virus, anti-spyware, spam controls, privacy software, a registry cleaner and trusted data recovery tools activated and protecting your system.

A .DLL file is an executable file that has no ability to actually "launch" on its own - it can only be executed within the context of another compiled file (an executable file) because it does not contain the codes that the .DLL provides. To load a .DLL file, the executable file has to declare the function within its codes and invoke the required parameters in order to call on the features provided by the .DLL.

In essence the .DLL file acts as a translator between the operating system, the hardware device and individual software application so you are able to complete the tasks you have asked of your PC or laptop. Assuming the software and hardware have been installed correctly there should be no problems for .DLL files to function as the linkages between software and the hardware installed in your PC or laptop.

If you are consistently experiencing problems launching certain software applications or experiencing general system crashes or slowdowns then you may be faced with a malfunctioning or corrupted Windows Registry. Fortunately most file extension-related errors can be easily resolved by running a Windows Registry Optimizer which cleans the Registry and repairs many of these types of problems. These programs also tend to keep the Windows Registry working efficiently, speed up the PC or laptop and generally keep the computer functioning smoothly.

Common .DLL Errors

Modern PCs and laptops operating systems are comprised of numerous .DLL files that are utilized for different functionalities. It is quite likely that every computer user will experience .DLL file problems at some time or other simply because there are so many of them for the Registry and operating system to track.

The most common problem that is associated with a .DLL file is the General Protection Fault (GPF). This happens due to an incorrect declaration or call that is made by the code within the executable file. This happens when the executable file invokes a different version of the .DLL file and requires additional parameters or is calling on a function that does not exist within the .DLL file that is being invoked. This results in hanging or locking up of the computer system. You can compare it to calling a number that is non-existent or not having the right number of digits, as a result of which your call will not be able to connect.

If you are running one of the Microsoft Windows Operating System environments, .DLL file errors with the 32-sufffix such as kernel32.dll, user32.dll or system32.dll are cause for some concern because this error refers to files that are located within the system critical 32-bit Windows Operating System environment. Third party registry cleaners and optimizers can help maintain a healthy collection of system files and minimize .DLL file associated errors.

Preventing and Fixing .DLL Problems

The occurrences of .DLL file problems cannot be totally avoided, but can most of the time be fixed by following these recommendations:

  • Take care in removing and installing applications that involve shared .DLL files, because it can damage the Windows Registry and corrupt your operating system. You can use registry cleaners for the safe removal of unused .DLL files.

  • Verify the authenticity of freeware and other unsolicited applications prior to installation, because some of these files launch Malware and Trojans that remain undetected without the presence of adequate anti-virus and anti-spyware software protection.

  • Regularly update the operating system, device drivers, applications with security releases, patches and service packs.

  • Scan and repair the registry regularly in order to avoid system errors. If possible, install a reliable registry optimizer and cleaner to augment the capabilities of the Windows registry tool.

  • Make sure that your computer system is adequately protected from viruses and other malicious codes with the presence of anti-virus and anti-spyware tools.

  • Lastly, be prepared to recovery lost files with a reputable data recovery utility - these utilities offer great peace of mind knowing you can recover your data if something unforseen does happen.

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