The c1.win.c1input.dll file is part of an input program from ComponentOne LLC. ComponentOne is a company that specializes in documentation related software suites. They also create plugins for other software like Microsoft Visual Studio. You may have software from this company on your computer as part of another piece of software. If you get an error listing this input dynamic link library, figuring out where the problem is can be a serious pain.
Most computer users do not know exactly where each file that a program uses needs to be located on their computer. Usually, the installation programs do the work of placing those files for you. But files can be moved, and then you have a job ahead of you putting those files back where they belong.
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