The file i_tabler.dll is an unknown dynamic link library file. This means that no programs that use this file have yet been identified. This does not mean that this is a dangerous file, but the possibility is real. Whenever you run across an unidentified file, you should run your anti-virus software and an anti-spyware program. SpyZooka is an anti-spyware program that will tell you if you have a problem, so try a free SpyZooka scan now to make sure this file is harmless.
If you are having an error with this file and have run your anti-virus and anti-spyware checks, you may need to clean your registry to solve the issue. The registry is the way Windows keeps track of the files installed on your computer, and sometimes it can get mistakes in it. Cleaning those mistakes means checking through the thousands of entries in the registry for errors and fixing them. ZookaWare PC Cleaner is designed to do the task for you. ZookaWare PC Cleaner cleans up mistakes in the registry to get your system back to 100%. Try a free ZookaWare PC Cleaner scan now to see if the problem you are having is in your registry.