The file i420render.dll is part of the 3GP Video Converter for the i420 video format. This file is used by many different programs as both a plugin and a core piece. As a dynamic link library file, it contains code that can be used by different applications for the same purpose. Because it is widespread, you may not be able to easily determine which program is having a problem with this file when you see it in an error message. You may need to clean your registry to fix this issue.
The Windows registry is a database that contains information about all the files installed on your computer. Windows uses the registry when you run a program to find and execute the files associated with the program. Mistakes in the registry lead to programs not running. Cleaning the registry can fix those mistakes. ZookaWare PC Cleaner hunts through your registry, checking for errors. ZookaWare PC Cleaner repairs those errors to get your system up-and-running again. Try a free ZookaWare PC Cleaner scan to see if your registry can use a good cleaning.