Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

3.2.9600.17029 (winblue_gdr.140219-1702) 4.00%
3.1.9600.16384 (winblue_rtm.130821-1623) 4.00%
2.0.9200.16384 (win8_rtm.120725-1247) 76.00%
2.0.9200.16384 (win8_rtm.120725-1247) 8.00%
2.0.8400.0 (winmain_win8rc.120518-1423) 4.00%
2.0.8400.0 (winmain_win8rc.120518-1423) 4.00%

Relationships


PE structurePE file structure

Show functions
Import table
advapi32.dll
RegCloseKey, RegQueryInfoKeyW, RegEnumKeyExW, RegOpenKeyExW, RegSetValueExW, RegCreateKeyExW, RegDeleteValueW, OpenProcessToken, DuplicateTokenEx, SetTokenInformation, CreateProcessAsUserW, RegQueryValueExW, StartServiceCtrlDispatcherW, RegisterEventSourceW, ReportEventW, DeregisterEventSource, SetServiceStatus, RegisterServiceCtrlHandlerW, OpenSCManagerW, OpenServiceW, CloseServiceHandle, CreateServiceW, ControlService, DeleteService, LookupPrivilegeValueW, AdjustTokenPrivileges
kernel32.dll
lstrcmpiW, RaiseException, LeaveCriticalSection, EnterCriticalSection, MultiByteToWideChar, SizeofResource, LoadResource, FindResourceExW, GetModuleFileNameW, InitializeCriticalSection, DeleteCriticalSection, GetCurrentProcess, WaitForSingleObject, CloseHandle, Sleep, GetFileAttributesW, SetEvent, CreateThread, WTSGetActiveConsoleSessionId, CreateEventW, InterlockedIncrement, InterlockedDecrement, GetCommandLineW, GetCurrentThreadId, CreateFileW, GetProcessHeap, SystemTimeToTzSpecificLocalTime, GetSystemTime, ExpandEnvironmentStringsW, CreateFileA, FlushFileBuffers, GetModuleHandleW, WriteConsoleA, GetConsoleOutputCP, SetStdHandle, SetFilePointer, GetConsoleMode, GetConsoleCP, TlsSetValue, TlsGetValue, TlsAlloc, LCMapStringA, LCMapStringW, GetStringTypeA, GetStringTypeW, GetLocaleInfoA, LoadLibraryExA, InitializeCriticalSectionAndSpinCount, GetCPInfo, GetOEMCP, GetACP, IsValidCodePage, HeapSize, HeapReAlloc, OutputDebugStringA, FreeEnvironmentStringsW, SetLastError, GetModuleHandleA, VirtualQuery, VirtualProtect, VirtualAlloc, GetSystemInfo, TerminateProcess, SetUnhandledExceptionFilter, UnhandledExceptionFilter, HeapFree, HeapAlloc, GetEnvironmentStringsW, GetTickCount, GetSystemTimeAsFileTime, GetCurrentProcessId, QueryPerformanceCounter, GetStartupInfoA, SetHandleCount, GetFileType, VirtualFree, HeapCreate, GetModuleFileNameA, WriteFile, GetStdHandle, ExitProcess, LoadLibraryExW, GetProcAddress, GetLastError, FreeLibrary, WriteConsoleW, WideCharToMultiByte, GetStartupInfoW, GetVersionExA, TlsFree
netapi32.dll
NetLocalGroupAddMembers, NetLocalGroupDelMembers
ntdll.dll
RtlInitUnicodeString, NtOpenEvent, RtlUnwind, NtDuplicateToken, NtQueryInformationToken
ole32.dll
CoTaskMemRealloc, CoTaskMemAlloc, CoTaskMemFree, CoInitializeEx, StringFromGUID2, CoCreateInstance, CoResumeClassObjects, CoRevokeClassObject, CoRegisterClassObject, CoSuspendClassObjects, PropVariantClear, CoUninitialize
sas.dll
SendSAS
shlwapi.dll
PathFindFileNameW, SHStrDupW
user32.dll
PostThreadMessageW, LoadStringW, SendMessageW, GetMessageW, CharUpperW, RegisterClassW, DefWindowProcW, SetWindowLongW, GetWindowLongW, DispatchMessageW, MessageBoxW, CreateWindowExW, UnregisterClassA, CharNextW, MsgWaitForMultipleObjects, PeekMessageW, TranslateMessage
userenv.dll
DestroyEnvironmentBlock, CreateEnvironmentBlock
wtsapi32.dll
WTSFreeMemory, WTSRegisterSessionNotification, WTSQuerySessionInformationW, WTSQueryUserToken, WTSDisconnectSession, WTSEnumerateSessionsW, WTSLogoffSession, WTSEnumerateProcessesExW, WTSUnRegisterSessionNotification

fussvc.exe

Microsoft Windows Kits 8.0 by Microsoft

Remove fussvc.exe
Version:   2.0.9200.16384 (win8_rtm.120725-1247)
MD5:   d07a5943d46e42d79c00a8baa20b7f7e
SHA1:   5e10912563b549e03ef943b0de693f01ecda585f
SHA256:   d05fc645e4e3bafae71d6a2d54a81a50e28ac72949f188139420d28e85458360

What is fussvc.exe?

Fast user switching is a feature on some modern multi-user operating systems such as Windows. It allows users to switch between user accounts on a single PC without quitting applications and logging out. Fast user switching in Windows is based on Remote Desktop Services technology.

Overview

fussvc.exe runs as a service under the name fussvc within the local user context. This version is installed on Windows 8.

DetailsDetails

File name:fussvc.exe
Publisher:Microsoft Corporation
Product name:Microsoft (R) Windows (R) Kits 8.0
Description:Fast User Switching Utility Service
Typical file path:C:\Program Files\windows kits\8.0\app certification kit\fussvc.exe
File version:2.0.9200.16384 (win8_rtm.120725-1247)
Product version:2.0.9200.16384
Size:130.5 KB (133,632 bytes)
Digital DNA
PE subsystem:Windows GUI
File packed:No
.NET CLR:No
More details

BehaviorsBehaviors

Service
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • fussvc

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 36.00%
Windows 8 Pro 32.00%
Windows 7 Home Premium 16.00%
Windows 8.1 Pro 8.00%
Windows 8 Enterprise 4.00%
Windows 8 4.00%

Distribution by countryDistribution by country

United States installs about 50.00% of Microsoft (R) Windows (R) Kits 8.0.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 31.58%
Acer 21.05%
Lenovo 10.53%
ASUS 10.53%
Intel 10.53%
MSI 10.53%
Hewlett-Packard 5.26%
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