A couple of decades ago, computer applications could run from a single executable file. However, with the increasing complexity of software applications, a number of files were required for the application to run properly. Running large applications required a large memory, since several files were being used by the application off and on. However, some files did not require continuous access, so these files could be swapped as and when required. This enabled applications to run without eating up too much of system memory. The files that enabled this swapping are known as DLL of Dynamic Link Library files.
Applications sometimes display DLL errors of various kinds. These errors may occur due to a plethora of reasons. As such, applications don't store its DLL files in the folder where the main executable is housed. Instead, DLL files are usually stored separately in the Windows folder. This allows DLLs to be shared by several applications. To make DLLs available for new applications, the developers of the new applications get a specific DLL licensed from the original developer of that DLL. In this way, applications utilize the DLLs in your computer. However, this complex process also creates a number of DLL errors. When you run an application, you may encounter application-related DLL error messages such as 'Illegal Operation' or 'Incorrect DLL Version'
Some common types of Application Errors Related to DLL issues include 'clb.dll application has failed to start error' and 'xprt5.dll application' error. You usually encounter clb.dll and xprt5.dll errors when you're shutting down or starting your computer. The errors may appear during Windows installation as well. xprt5.dll is also installed with AOL Instant messenger. The clb.dll file on the other hand is a Windows operating system file which is a critical component of your Windows OS. DLL error fixes for both clb.dll and xprt5.dll are quite straightforward.
To begin, you should start your Windows in Safe Mode and try searching for clb.dll and xprt5 in the Recycle Bin, to make sure they weren't accidentally deleted. You may also try using a file recovery program to search for deleted clb files on your computer.
If this does not work, invoke the System Restore utility and restore your system to the date when you are sure the DLL errors didn't turn up.
Additionally, scanning your computer with an updated antivirus program may also be helpful. This is because many times, viruses may corrupt your DLL files on your computer and generate errors.
There are numerous DLL download sites on the internet, but replacing your corrupt or missing DLL files may not be a good idea, as some of these DLLs available on the Internet are actually malware which masquerade as DLLs.
Last but not the least, you should scan your computer with a registry cleaning software. A good registry cleaner tool helps you fix any incorrect DLL entries and resolve various DLL-related issues.
This guest article written by James Ricketts