vmisrv.exe is a VAIO Media Integrated Server
from Sony Corporation
belonging to VAIO Media Integrated Server
. It is run as service and can be disabled from Control Panel>Administrative Tools>Service.
Non-system processes like vmisrv.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues