How to Perform DLL Repair

Need for DLL Repair

Earlier, when every MB of hard disk space meant money, there was a need for a technology that enabled developers to create applications that consumed less storage space on the system. To meet this need, Microsoft introduced the technology of using DLLs or Dynamic Link Libraries in Windows-based applications. DLL files were introduced to comprise functions and program codes that could be dynamically loaded and executed in multiple applications. This way they minimized the need to add the same code again and again in multiple applications and thus helped in saving storage space. Moreover, these DLL files were loaded only when an application required them, which helped in keeping the memory free for other important tasks.

Over the years, technology improved and the cost of memory and storage space went down drastically, but the DLL technology stayed on. Today, any Windows system comprises thousands of DLL files. Many of these are part of the main operating system and many are added when you install additional software programs on the system.

With such a large number of DLL files on the system, the chances of DLL errors are quite high. When the number of DLL errors increase on a PC, the system is said to be DLL Hell. Once you are in DLL hell, it becomes really difficult to get any work done on your PC. Therefore, you are forced to perform DLL repair.

DLL Errors: Causes

Common errors related to DLLs usually occur due to the existence of missing, corrupt, or incompatible DLLs on the system. Some of the common causes of these DLL problems are listed below.

  • A DLL gets deleted by mistake or when uninstalling an application.
  • An application installation process replaces existing DLL files with corrupt, incompatible or an older DLL file.
  • A faulty application damages the DLL files.
  • The Windows registry is damaged or it contains invalid DLL entries.
  • System is infected by malware programs.

When DLL errors start occurring frequently on a system, the system is said to be in DLL hell. Once you are in DLL hell, it is very difficult to carry out activities on your system, making important for you to perform DLL repair tasks.

DLL Errors: Solutions

There are four main sources of DLL errors-applications, hardware, malware, and the registry.

To prevent errors caused due to applications, you must be careful while installing and uninstalling applications. Do not overwrite a more current version of a DLL file with an older version-while installing and do not delete a shared DLL file-while uninstalling-especially, if it is shared across multiple applications. In case, you overwrite a DLL by mistake, you can resolve the error either by updating the application you have installed-if an update is available-or by copying the later version of DLL file to your system from the Internet or another computer and the registering it on your system. If nothing works, you may try to use System Restore to rollback your PC to the time when the error was not there. If you delete a DLL while uninstalling an application, reinstall this application, and then uninstall it again-but this time do not delete the DLL file that generated the error.

To prevent and resolve DLL errors due to malfunctioning hardware, ensure that all hardware, cables, and peripheral devices are properly connected to your PC and that the internal PC components are dust-free. Also, keep the device drivers updated with the latest hotfixes and patches released by their manufacturers to prevent DLL errors due to incompatible or outdated files.

Malware programs such as viruses & Trojans and spyware & adware are a major cause of many common errors on a Windows system. These malicious programs, damage your applications, corrupt the registry by adding invalid entries and altering existing entries, steal your confidential information, display troublesome pop-up ads on the system, generate frequent errors, and deteriorate system performance. To prevent problems due to malware infections, you must periodically detect and remove malicious information from your PC by running regular antivirus and antispyware scans.

Lastly, to repair and prevent DLL errors, you must maintain a healthy registry by keeping it free from unwanted, invalid and malicious information. You can easily perform these tasks by using an advanced registry cleaner tool, such as RegServe. RegServe enables you to perform several registry maintenance tasks such as scan and repair registry errors, perform registry backup and defrag the registry to speed it up and as a result improve the performance of your Windows system.