Meaning of CISVC in English
Content Index Service first seen in Windows 2000 Server with Microsoft Index Service 3, and then in Windows XP. CISVC is a safeguard process which monitors the memory consumption of CIDAEMON above. If CIDAEMON exceeds 40Mb of memory usage, CISVC automatically terminates CIDAEMON and then restarts it. This mechanism prevents the PC/Server from reaching a low memory situation and a resulting slow down in processing.
Microsoft Windows task list Programs English glossary. Английский словарь - Список целевых программ Microsoft Windows. 2012