The file i4clntjni.dll is a LUM Runtime file from IBM belonging to the LUM application. The LUM application is the IBM License Use Management, a program that allows developers to make their software license-enabled. A license-enabled product requires a key or password to activate full functionality. As a runtime file, you might see this dynamic link library packaged with many different kinds of programs. An error with this file may indicate problems with the license of the product this file is associated with. Try fixing the error by cleaning the registry. If that does not work, you will need to contact the software vendor to clear up the licensing problem.
Cleaning the registry means fixing every mistake in your Windows registry. In most cases, a dll file error is caused by a registry error, and a registry clean will solve the issue. ZookaWare PC Cleaner finds and fixes errors in your registry, making your computer run smoothly and problem-free. Try a free ZookaWare PC Cleaner scan to see if your registry has errors that need to be fixed.