The registry file a0b742ca.core.dll is a part of an unknown module. The place it originates (or is executed) from is unknown at this time. However, most DLL files (Dynamic Link Library) are a part of the setup or removal of a program. They are used for both drivers and software.
If you’re seeing an error in your DLL, it’s possible that you interrupted the installation or something wasn’t completely removed. These files end up floating all over your registry and popping up as errors.
The more that you neglect editing and optimizing your registry, the slower your computer gets. You may find your computer susceptible to crashes and programs that won’t open.
Take care of any errors like a0b742ca.core.dll before you have to restore your entire operating system back to its original state. That’s one way to get it running like new. The other way is to click here and scan your computer with ZookaWare PC Cleaner’s registry cleaner for free. If you decide to purchase, it’s only $29.95 with a guarantee.