hidserv.exe is the windows human interface device service. It monitors your system for when you plug various USB devices in. More information can be found here.
Quote: Microsoft? Windows??98 and later versions provide built-in support for
devices compliant with the USB Device Class Definition for Audio
Devices, Version 1.0 (see http://www.usb.org/?),
and for audio control devices compliant with the USB Device Class
Definition for Human Interface Devices (HID), Version 1.0 and 1.1.
"This is the Human Interface Device Server for Win98SE/2000/Me/XP
Service DB Entries:
Every attempt has been made to ensure the information about hidserv.exe is accurate but alot of malware applications try to pose as valid applications. If it is something other than what was posted above please leave some feedback in the forum.