Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 0.99%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.06%
6.3.9600.16384 (winblue_rtm.130821-1623) 1.60%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.11%
6.2.9200.16420 (win8_gdr.120919-1813) 0.06%
6.2.9200.16420 (win8_gdr.120919-1813) 0.17%
6.2.9200.16420 (win8_gdr.120919-1813) 1.05%
6.2.9200.16420 (win8_gdr.120919-1813) 3.30%
6.2.9200.16420 (win8_gdr.120919-1813) 4.29%
6.2.9200.16384 (win8_rtm.120725-1247) 0.33%
6.2.9200.16384 (win8_rtm.120725-1247) 0.33%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.17%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.06%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.11%
6.1.7600.16385 (win7_rtm.090713-1255) 7.32%
6.1.7600.16385 (win7_rtm.090713-1255) 14.14%
6.1.7600.16385 (win7_rtm.090713-1255) 11.39%
6.1.7600.16385 (win7_rtm.090713-1255) 4.51%
6.1.7600.16385 (win7_rtm.090713-1255) 0.22%
6.1.7600.16385 (win7_rtm.090713-1255) 0.06%
6.1.7600.16385 (win7_rtm.090713-1255) 36.25%
6.1.7600.16385 (win7_rtm.090713-1255) 13.53%

Relationships

Child process
Related files

PE structurePE file structure
Show functions
Import table
api-ms-win-core-apiquery-l1-1-0.dll
ApiSetQueryApiSetPresence
api-ms-win-core-com-l1-1-0.dll
CoInitializeSecurity, CoCreateInstance, CoEnableCallCancellation, CoDisableCallCancellation, CoCancelCall, CoUninitialize, CoInitializeEx, StringFromCLSID, CoTaskMemFree
api-ms-win-core-com-l1-1-1.dll
CoInitializeSecurity, CoCancelCall, CoDisableCallCancellation, CoEnableCallCancellation, CoCreateInstance, CoUninitialize, CoInitializeEx
api-ms-win-core-debug-l1-1-1.dll
IsDebuggerPresent, OutputDebugStringA
api-ms-win-core-delayload-l1-1-1.dll
ResolveDelayLoadedAPI, DelayLoadFailureHook
api-ms-win-core-errorhandling-l1-1-0.dll
UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetLastError, SetLastError
api-ms-win-core-errorhandling-l1-1-1.dll
GetLastError, SetUnhandledExceptionFilter, UnhandledExceptionFilter, SetLastError
api-ms-win-core-handle-l1-1-0.dll
CloseHandle
api-ms-win-core-heap-l1-1-0.dll
GetProcessHeap, HeapAlloc, HeapSize, HeapReAlloc, HeapDestroy, HeapFree, HeapCreate
api-ms-win-core-heap-l1-2-0.dll
GetProcessHeap, HeapDestroy, HeapAlloc, HeapSize, HeapReAlloc, HeapFree, HeapCreate
api-ms-win-core-heap-obsolete-l1-1-0.dll
LocalFree
api-ms-win-core-interlocked-l1-1-0.dll
InterlockedCompareExchange, InterlockedDecrement, InterlockedIncrement, InterlockedExchange
api-ms-win-core-interlocked-l1-1-1.dll
InterlockedDecrement, InterlockedIncrement, InterlockedCompareExchange, InterlockedExchange
api-ms-win-core-interlocked-l1-2-0.dll
InterlockedDecrement, InterlockedIncrement, InterlockedCompareExchange, InterlockedExchange
api-ms-win-core-libraryloader-l1-1-1.dll
LoadStringW, GetModuleHandleW, GetModuleHandleA, GetProcAddress
api-ms-win-core-libraryloader-l1-2-0.dll
GetModuleHandleW, LoadStringW, GetModuleHandleA
api-ms-win-core-localregistry-l1-1-0.dll
RegGetValueW
api-ms-win-core-processthreads-l1-1-0.dll
OpenProcessToken
api-ms-win-core-processthreads-l1-1-1.dll
TerminateProcess, GetExitCodeThread, GetStartupInfoW, SetProcessShutdownParameters, GetCurrentProcess, GetCurrentThread, CreateThread, GetCurrentThreadId, SetThreadPriority, GetCurrentProcessId, GetThreadPriority, IsProcessorFeaturePresent, OpenProcessToken
api-ms-win-core-processthreads-l1-1-2.dll
GetThreadPriority, TerminateProcess, GetCurrentProcess, GetExitCodeThread, GetCurrentThreadId, GetCurrentProcessId, SetProcessShutdownParameters, CreateThread, GetStartupInfoW, GetCurrentThread, SetThreadPriority
api-ms-win-core-profile-l1-1-0.dll
QueryPerformanceCounter
api-ms-win-core-registry-l1-1-0.dll
RegGetValueW
api-ms-win-core-string-l1-1-0.dll
WideCharToMultiByte
api-ms-win-core-synch-l1-1-1.dll
DeleteCriticalSection, EnterCriticalSection, CreateEventW, InitializeSRWLock, InitOnceExecuteOnce, ReleaseSRWLockExclusive, InitializeCriticalSection, Sleep, SetEvent, WaitForSingleObject, LeaveCriticalSection, AcquireSRWLockExclusive, ResetEvent
api-ms-win-core-synch-l1-2-0.dll
EnterCriticalSection, ResetEvent, ReleaseSRWLockExclusive, AcquireSRWLockExclusive, WaitForSingleObject, InitializeSRWLock, SetEvent, InitializeCriticalSection, DeleteCriticalSection, LeaveCriticalSection, Sleep, InitOnceExecuteOnce, CreateEventW
api-ms-win-core-sysinfo-l1-1-1.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-core-sysinfo-l1-2-0.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-core-sysinfo-l1-2-1.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-core-threadpool-l1-1-1.dll
DeleteTimerQueueTimer, CreateTimerQueueTimer
api-ms-win-core-threadpool-legacy-l1-1-0.dll
CreateTimerQueueTimer, DeleteTimerQueueTimer
api-ms-win-eventing-classicprovider-l1-1-0.dll
GetTraceEnableLevel, UnregisterTraceGuids, GetTraceLoggerHandle, GetTraceEnableFlags, TraceMessage, RegisterTraceGuidsW
api-ms-win-obsolete-kernelbase-l1-1-0.dll
LocalFree
api-ms-win-security-base-l1-1-0.dll
GetSecurityDescriptorSacl, MakeAbsoluteSD, GetSecurityDescriptorControl, AddAce, InitializeSid, CopySid, InitializeAcl, GetTokenInformation, AllocateAndInitializeSid, FreeSid, GetSidLengthRequired, GetSecurityDescriptorGroup, GetLengthSid, GetSecurityDescriptorDacl, GetSidSubAuthority, SetSecurityDescriptorDacl, SetSecurityDescriptorGroup, SetSecurityDescriptorOwner, GetAclInformation, IsValidSid, InitializeSecurityDescriptor, GetSecurityDescriptorOwner
api-ms-win-security-base-l1-2-0.dll
FreeSid, InitializeAcl, GetLengthSid, AllocateAndInitializeSid, GetSecurityDescriptorSacl, GetSecurityDescriptorDacl, GetSecurityDescriptorGroup, GetSecurityDescriptorOwner, GetSecurityDescriptorControl, SetSecurityDescriptorOwner, IsValidSid, InitializeSecurityDescriptor, MakeAbsoluteSD, GetSidSubAuthority, InitializeSid, GetSidLengthRequired, SetSecurityDescriptorGroup, SetSecurityDescriptorDacl, AddAce, GetAclInformation, CopySid
kernel32.dll
InterlockedExchange, Sleep, InterlockedCompareExchange, GetStartupInfoW, SetUnhandledExceptionFilter, GetModuleHandleA, QueryPerformanceCounter, GetTickCount, GetCurrentThreadId, GetCurrentProcessId, GetSystemTimeAsFileTime, TerminateProcess, GetCurrentProcess, UnhandledExceptionFilter, GetLastError, WaitForSingleObject, ResetEvent, CloseHandle, CreateEventW, HeapFree, HeapDestroy, HeapCreate, HeapReAlloc, SetLastError, HeapAlloc, InitOnceExecuteOnce, SetProcessShutdownParameters, InterlockedIncrement, DeleteAtom, IsDebuggerPresent, AcquireSRWLockExclusive, ReleaseSRWLockExclusive, SetEvent, InterlockedDecrement, GetModuleHandleW, CreateThread, InitializeSRWLock, SetThreadPriority, GetThreadPriority, GetCurrentThread, GetExitCodeThread, DeleteTimerQueueTimer, CreateTimerQueueTimer, HeapSize, GetProcessHeap, LocalFree, OutputDebugStringA, GetTickCount64
msvcrt.dll
DllMain
ntdll.dll
RtlUnhandledExceptionFilter, EtwTraceMessage, DbgPrintEx, NtSetInformationProcess
ole32.dll
CoEnableCallCancellation, CoCancelCall, CoDisableCallCancellation, CoCreateInstance, CoInitializeSecurity, CoInitializeEx, CoUninitialize
rpcrt4.dll
RpcAsyncInitializeHandle, RpcBindingFree, RpcBindingSetAuthInfoExW, RpcStringFreeW, RpcBindingFromStringBindingW, RpcStringBindingComposeW, NdrClientCall2, NdrAsyncClientCall, RpcAsyncCompleteCall, RpcAsyncCancelCall
user32.dll
UpdateWindow, ShowWindow, DefWindowProcW, RegisterClassW, DispatchMessageW, TranslateMessage, MsgWaitForMultipleObjects, PostMessageW, GetWindowThreadProcessId, IsWindow, EnumThreadWindows, EnumWindows, PostQuitMessage, ShutdownBlockReasonDestroy, LoadStringW, ShutdownBlockReasonCreate, DestroyWindow, PeekMessageW, UnregisterClassW, CreateWindowExW

taskhost.exe

Host Process for Windows Tasks by Microsoft Corporation (Signed)

Remove taskhost.exe
Version:   6.2.9200.16420 (win8_gdr.120919-1813)
MD5:   4a627d948c498368b2f65a5312455520
SHA1:   ba4452efe4c36d652cfbcba709e76439927ada67
SHA256:   a6ac050209de765e6993670e7b5dc3d74029cceefcd5916eeab6ebecbfd6f607
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is taskhost.exe?

Host Process for Windows Tasks is a generic process which acts as a host for processes that run from DLLs rather than EXEs. At startup TASKHOST checks the Services portion of the Registry to construct a list of DLL-based services that it needs to load, and then loads them.

Overview

taskhost.exe executes as a process with the local user's privileges. The file is digitally signed by Microsoft Corporation. This version is installed on Windows 8 and is compiled as a 64 bit program.

DetailsDetails

File name:taskhost.exe
Publisher:Microsoft Corporation
Product name:Host Process for Windows Tasks
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\taskhost.exe
Original name:taskhost.exe.mui
File version:6.2.9200.16420 (win8_gdr.120919-1813)
Product version:6.2.9200.16420
Size:76 KB (77,824 bytes)
Certificate
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Expiration date:Tuesday, July 9, 2013
Digital DNA
Entropy:6.163300
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details
Network connections
  • [UDP] listens on port 62952
  • [UDP] listens on port 52670
  • [UDP] listens on port 63988
  • [UDP] listens on port 57045
  • [UDP] listens on port 51468

    • ResourcesResource utilization

    (Note: statistics below are averages based on a minimum sample size of 200 unique participants)
    Averages
     
    CPU
    Total CPU:0.14588940%
    0.028634%
    Kernel CPU:0.11366190%
    0.013761%
    User CPU:0.03222750%
    0.014873%
    Kernel CPU time:258,251 ms/min
    100,923,805ms/min
    CPU cycles:246,047/sec
    17,470,203/sec
    Context switches:3/sec
    284/sec
    Memory
    Private memory:9.77 MB
    21.59 MB
    Private (maximum):16.7 MB
    Private (minimum):9.36 MB
    Non-paged memory:9.77 MB
    21.59 MB
    Virtual memory:133.65 MB
    140.96 MB
    Virtual memory (peak):193.58 MB
    169.69 MB
    Working set:16.27 MB
    18.61 MB
    Working set (peak):22.2 MB
    37.95 MB
    Page faults:25,280/min
    2,039/min
    I/O
    I/O read transfer:54.16 KB/sec
    1.02 MB/min
    I/O read operations:11/sec
    343/min
    I/O write transfer:4.63 KB/sec
    274.99 KB/min
    I/O write operations:2/sec
    227/min
    I/O other transfer:662 Bytes/sec
    448.09 KB/min
    I/O other operations:22/sec
    1,671/min
    Resource allocations
    Threads:10
    12
    Handles:391
    600
    GUI GDI count:32
    103
    GUI GDI peak:36
    142
    GUI USER count:11
    49
    GUI USER peak:19
    71

    BehaviorsProcess properties

    Integrety level:System
    Platform:64-bit
    Command lines:
    • taskhost.exe $(arg0)
    • taskhost.exe
    • taskhost.exe user
    • taskhost.exe /runtimewide
    • taskhost.exe system
    • taskhost.exe time
    • (7 more)
    Owner:User
    Parent process:services.exe (by Microsoft)

    ResourcesThreads

    Averages
     
    wow64win.dll
    Total CPU:0.01678729%
    0.272967%
    Kernel CPU:0.01678729%
    0.107585%
    User CPU:0.00000000%
    0.165382%
    CPU cycles:149,623/sec
    5,741,424/sec
    Memory:360 KB
    1.16 MB
    RacEngn.dll
    Total CPU:0.00241541%
    Kernel CPU:0.00039356%
    User CPU:0.00202185%
    CPU cycles:57,006/sec
    Memory:1.69 MB
    ntdll.dll
    Total CPU:0.00155908%
    Kernel CPU:0.00013847%
    User CPU:0.00142061%
    CPU cycles:15,491/sec
    Memory:1.74 MB
    taskhost.exe (main module)
    Total CPU:0.00020608%
    Kernel CPU:0.00019074%
    User CPU:0.00001534%
    CPU cycles:3,372/sec
    Memory:88 KB
    sqlcese40.dll
    Total CPU:0.00011970%
    Kernel CPU:0.00010707%
    User CPU:0.00001263%
    CPU cycles:3,745/sec
    Memory:540 KB
    combase.dll
    Total CPU:0.00005560%
    Kernel CPU:0.00003980%
    User CPU:0.00001580%
    CPU cycles:1,617/sec
    Memory:1.69 MB
    HotStartUserAgent.dll
    Total CPU:0.00002028%
    Kernel CPU:0.00001410%
    User CPU:0.00000618%
    CPU cycles:589/sec
    Memory:116 KB
    WININET.dll
    Total CPU:0.00001670%
    Kernel CPU:0.00001336%
    User CPU:0.00000334%
    CPU cycles:680/sec
    Memory:2.18 MB

    Common loaded modules

    These are modules that are typiclaly loaded within the context of this process.

    Windows OS versionsDistribution by Windows OS

    OS versiondistribution
    Windows 7 Home Premium 45.50%
    Windows 7 Ultimate 19.50%
    Windows 8.1 10.00%
    Windows 7 Professional 8.00%
    Windows 8.1 Pro 6.50%
    Windows 7 Home Basic 2.50%
    Windows 8.1 Single Language 2.00%
    Windows 8 2.00%
    Windows 8 Single Language 1.50%
    Windows Seven Black Edition 0.50%
    Windows 8.1 Enterprise Evaluation 0.50%
    Windows 8.1 Pro with Media Center 0.50%
    Windows 7 Starter 0.50%
    Windows 8.1 Pro Preview 0.50%

    Distribution by countryDistribution by country

    United States installs about 48.24% of Host Process for Windows Tasks.

    OEM distributionDistribution by PC manufacturer

    PC Manufacturerdistribution
    Dell 25.48%
    Hewlett-Packard 18.92%
    ASUS 17.76%
    Acer 13.13%
    Toshiba 8.49%
    Lenovo 5.41%
    Sony 5.41%
    GIGABYTE 1.54%
    Medion 1.54%
    Alienware 1.16%
    Samsung 0.77%
    Sahara 0.39%
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