The file msvcr100.dll is part of the OOBE (Out-of-box experience) folder of Adobe programs in the Common Files folder. The term OOBE includes the setup process and the initial configuration of a piece of software, as the preparation for the first usage of the product.
Non-system processes like msvcr100.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues