The c2itsp.tsp file is a part of the Euritel Cordless TAPI 2.x driver from ESTOS. ESTOS Euritel is a program that allows you to use your cordless phone with your ISDN service. This file belongs to a driver, a software tool that is specifically designed to connect your computer to an outside piece of hardware, in this case a phone.
An error with this file may mean that your phone service through your PC does not work correctly. You might be able to solve this problem by reinstalling the drivers, but this problem may also be a sign of mistakes in the registry that can be cleaned.
The registry tracks files installed on your computer so Windows can use those files to run your software. Mistakes break your programs. ZookaWare PC Cleaner breaks those mistakes. ZookaWare PC Cleaner finds and fixes every error in your registry to get your system running at 100% again. Run ZookaWare PC Cleaner when you see strange “file not found” errors, and get back in the game. Try a free ZookaWare PC Cleaner scan now to see if there are any problems in your registry that need to be cleaned.