The tabbylib.dll file is an image library used by Neko95 to display a tabby cat. Neko95 is a desktop program that displays a moving cat that chases your cursor around the screen. Some customization options include changing the appearance of the cat from a plain white cat to something different. For each different appearance, a library of files is needed. This is one such file. A problem with this file probably indicates a problem in your registry that needs to be fixed, and should be dealt with by cleaning the Windows registry.
The registry keeps track of the files and settings that your programs require in order to run. If the data in the registry is incorrect or corrupted, you may not be able to run the software that needs that data. ZookaWare PC Cleaner from ZookaWare can help with registry problems. ZookaWare PC Cleaner cleans up errors and corruption in the registry to get your programs working right again.
ZookaWare PC Cleaner is guaranteed to repair your problems. So run a free trial scan now and see exactly what sort of issues are cluttering up your registry.