Should I block it?

No, this file is 100% safe to run.

Additional versions

6.3.9600.16384 (winblue_rtm.130821-1623)	7.00%
6.3.9600.16384 (winblue_rtm.130821-1623)	0.24%
6.3.9431.0 (winmain_bluemp.130615-1214)	0.48%
6.2.9200.16384 (win8_rtm.120725-1247)	2.90%
6.2.9200.16384 (win8_rtm.120725-1247)	17.39%
6.2.8102.0 (winmain_win8m3.110823-1455)	0.24%
6.1.7600.16385 (win7_rtm.090713-1255)	42.51%
6.1.7600.16385 (win7_rtm.090713-1255)	16.91%
6.0.6002.18005 (lh_sp2rtm.090410-1830)	6.04%
6.0.6002.18005 (lh_sp2rtm.090410-1830)	1.21%
6.0.6000.16386 (vista_rtm.061101-2205)	1.45%
5.2.3790.1830 (srv03_sp1_rtm.050324-1447)	0.24%
5.1.2600.5512 (xpsp.080413-2108)	2.17%
5.1.2600.5512 (xpsp.080413-2108)	0.24%
5.1.2600.5512 (xpsp.080413-2108)	0.24%
5.1.2600.5512 (xpsp.080413-2108)	0.24%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)	0.48%

Relationships

PE file structure

Show functions

Import table

advapi32.dll

RegCloseKey, RegQueryValueExW, RegOpenKeyW, SetServiceStatus, RegisterServiceCtrlHandlerExW, RegSetValueExW, RegCreateKeyExW, QueryServiceStatusEx, NotifyServiceStatusChangeW, RegOpenKeyExW, OpenSCManagerW, OpenServiceW, CloseServiceHandle

api-ms-win-core-apiquery-l1-1-0.dll

ApiSetQueryApiSetPresence

api-ms-win-core-com-l1-1-0.dll

CoInitializeSecurity, CoInitializeEx, CoUninitialize, CoCreateInstance

api-ms-win-core-com-l1-1-1.dll

CoInitializeSecurity, CoInitializeEx, CoUninitialize, CoCreateInstance

api-ms-win-core-delayload-l1-1-1.dll

DelayLoadFailureHook, ResolveDelayLoadedAPI

api-ms-win-core-errorhandling-l1-1-1.dll

UnhandledExceptionFilter, GetLastError, SetUnhandledExceptionFilter

api-ms-win-core-file-l1-2-0.dll

ReadFile, CreateDirectoryW, CreateFileW, WriteFile

api-ms-win-core-file-l1-2-1.dll

ReadFile, CreateFileW, WriteFile, CreateDirectoryW

api-ms-win-core-handle-l1-1-0.dll

CloseHandle, DuplicateHandle

api-ms-win-core-heap-l1-2-0.dll

HeapFree, HeapAlloc, GetProcessHeap

api-ms-win-core-heap-obsolete-l1-1-0.dll

LocalFree, LocalAlloc

api-ms-win-core-interlocked-l1-2-0.dll

InterlockedCompareExchange, InterlockedExchange

api-ms-win-core-io-l1-1-1.dll

CancelIoEx, DeviceIoControl, GetOverlappedResult

api-ms-win-core-localregistry-l1-1-0.dll

RegCloseKey, RegCreateKeyExW, RegSetValueExW, RegOpenKeyExW, RegQueryValueExW

api-ms-win-core-processthreads-l1-1-1.dll

GetCurrentProcessId, GetCurrentThreadId, OpenProcess, TerminateProcess, CreateThread, GetCurrentProcess

api-ms-win-core-processthreads-l1-1-2.dll

CreateThread, GetCurrentProcessId, OpenProcess, GetCurrentThreadId, GetCurrentProcess, TerminateProcess

api-ms-win-core-profile-l1-1-0.dll

QueryPerformanceCounter

api-ms-win-core-registry-l1-1-0.dll

RegCloseKey, RegOpenKeyExW, RegQueryValueExW, RegCreateKeyExW, RegSetValueExW

api-ms-win-core-string-l1-1-0.dll

MultiByteToWideChar

api-ms-win-core-synch-l1-2-0.dll

Sleep, WaitForSingleObject, WaitForSingleObjectEx, SetWaitableTimer, WaitForMultipleObjectsEx, ResetEvent, SetEvent, CancelWaitableTimer, CreateEventW, ReleaseMutex, CreateMutexW, CreateWaitableTimerExW

api-ms-win-core-sysinfo-l1-2-0.dll

GetTickCount, GetSystemTimeAsFileTime, GetSystemTime

api-ms-win-core-sysinfo-l1-2-1.dll

GetSystemTime, GetTickCount, GetSystemTimeAsFileTime

api-ms-win-core-timezone-l1-1-0.dll

SystemTimeToFileTime

api-ms-win-devices-config-l1-1-0.dll

CM_Unregister_Notification, CM_Register_Notification

api-ms-win-devices-config-l1-1-1.dll

CM_Register_Notification, CM_Unregister_Notification

api-ms-win-devices-query-l1-1-0.dll

DevCloseObjectQuery, DevCreateObjectQuery

api-ms-win-devices-query-l1-1-1.dll

DevCloseObjectQuery, DevCreateObjectQuery

api-ms-win-service-core-l1-1-0.dll

RegisterServiceCtrlHandlerExW, SetServiceStatus

api-ms-win-service-core-l1-1-1.dll

SetServiceStatus, RegisterServiceCtrlHandlerExW

api-ms-win-service-management-l1-1-0.dll

OpenServiceW, CloseServiceHandle, OpenSCManagerW

api-ms-win-service-management-l2-1-0.dll

NotifyServiceStatusChangeW, QueryServiceStatusEx

cfgmgr32.dll

DevQueryObjects, DevQueryClose

deviceassociation.dll

DafMemFree, DafStartFinalize, DafSelectCeremony, DafStartEnumCeremonies, DafCreateAssociationContextFromOobBlob, DafCloseAssociationContext, DafStartRemoveAssociation, DafCreateAssociationContext

devobj.dll

DevObjEnumDeviceInterfaces, DevObjGetClassDevs, DevObjGetDeviceInterfaceDetail, DevObjCreateDeviceInfoList, DevObjDestroyDeviceInfoList

kernel32.dll

GetCurrentProcess, DuplicateHandle, CreateDirectoryW, QueryPerformanceCounter, DelayLoadFailureHook, Sleep, ReleaseMutex, CreateMutexW, InterlockedExchange, GetProcAddress, FreeLibrary, InterlockedCompareExchange, LoadLibraryExA, ReadFile, GetTickCount, GetCurrentThreadId, GetCurrentProcessId, GetSystemTimeAsFileTime, TerminateProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, WriteFile, MultiByteToWideChar, DeviceIoControl, GetOverlappedResult, OpenProcess, lstrlenW, LocalAlloc, CreateFileW, CreateEventW, GetLastError, HeapFree, GetProcessHeap, HeapAlloc, CreateWaitableTimerW, SetWaitableTimer, WaitForMultipleObjectsEx, CancelWaitableTimer, SetEvent, WaitForSingleObject, CloseHandle, LocalFree, GetSystemTime, SystemTimeToFileTime, CreateThread, CancelIo, GetWindowsDirectoryW, DisableThreadLibraryCalls, LoadLibraryA, ResolveDelayLoadedAPI, ResetEvent

msvcrt.dll

DllMain

ntdll.dll

EtwGetTraceEnableFlags, EtwGetTraceLoggerHandle, EtwRegisterTraceGuidsW, EtwUnregisterTraceGuids, EtwGetTraceEnableLevel, EtwTraceMessage

ole32.dll

CoInitializeSecurity, CoInitializeEx, CoCreateInstance, CoUninitialize

rpcrt4.dll

RpcMgmtStopServerListening, RpcBindingInqAuthClientW, RpcRaiseException, RpcRevertToSelf, RpcImpersonateClient, RpcServerUseProtseqEpW, RpcServerRegisterIf, RpcServerInqDefaultPrincNameW, RpcServerRegisterAuthInfoW, RpcStringFreeW, RpcServerListen, NdrServerCall2, RpcMgmtWaitServerListen, RpcServerRegisterIfEx, RpcServerUnregisterIfEx

setupapi.dll

SetupDiGetDeviceInterfaceDetailW, SetupDiEnumDeviceInterfaces, SetupDiGetClassDevsW, SetupDiDestroyDeviceInfoList

shfolder.dll

SHGetFolderPathW

user32.dll

KillTimer, RegisterClassExW, CreateWindowExW, TranslateMessage, DispatchMessageW, DestroyWindow, UnregisterClassW, DefWindowProcW, RegisterDeviceNotificationW, PostMessageW, UnregisterDeviceNotification, GetMessageW

bthserv.dll

Bluetooth Support Service by Microsoft

Remove bthserv.dll

Version:	6.1.7600.16385 (win7_rtm.090713-1255)
MD5:	1df19c96eef6c29d1c3e1a8678e07190
SHA1:	5570ba554498ce055ee0c81c5d0bca589b8cd407
SHA256:	1f4bb161ff3a1c5b1465bb52f3520fedb7acb1faa132466f07d16db8e394aea5

This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is bthserv.dll?

The Bluetooth Windows service supports discovery and association of remote Bluetooth devices.

Overview

bthserv.dll is loaded as dynamic link library that runs in the context of a process. The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). This version is designed to run on Windows 7.

Details

File name:	bthserv.dll
Publisher:	Microsoft Corporation
Product name:	Bluetooth Support Service
Description:	Microsoft® Windows® Operating System
Typical file path:	C:\Windows\System32\bthserv.dll
Original name:	BTHSERV.DLL.MUI
File version:	6.1.7600.16385 (win7_rtm.090713-1255)
Product version:	6.1.7600.16385
Size:	63 KB (64,512 bytes)
Digital DNA
File packed:	No
Code language:	Microsoft Visual C# / Basic .NET
.NET CLR:	Yes
.NET NGENed:	No

More details

Behaviors

Hosted services

Runs as a shared service under the Windows svcHost

Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'
Shared name is 'bthserv'

Distribution by Windows OS

OS version	distribution
Windows 7 Home Premium	26.50%
Windows 7 Ultimate	19.00%
Windows 8.1	9.50%
Windows 8	6.50%
Windows 7 Professional	6.50%
Windows 8 Pro	5.00%
Windows 8 Single Language	4.00%
Microsoft Windows XP	4.00%
Windows 7 Home Basic	3.50%
Windows Vista Home Premium	3.50%
Windows 8.1 Pro	2.50%
Windows 8.1 Single Language	1.50%
Windows 8 Enterprise	1.50%
Windows 8 Pro with Media Center	1.50%
Windows 8.1 Enterprise Evaluation	0.50%
Windows 8.1 Pro with Media Center	0.50%
Windows Vista Home Basic	0.50%
Windows Developer Preview	0.50%
Windows 7 Starter	0.50%
Windows 8.1 Pro Preview	0.50%
Windows 7 Enterprise	0.50%
24 other Windows OS version

Distribution by country

United States installs about 25.76% of Bluetooth Support Service.

Distribution by PC manufacturer

PC Manufacturer	distribution
Dell	23.40%
Lenovo	15.60%
Hewlett-Packard	15.25%
Sony	14.18%
ASUS	11.35%
Acer	7.45%
Samsung	3.90%
Toshiba	3.55%
Alienware	1.42%
GIGABYTE	1.42%
Intel	0.71%
Apple	0.71%
MSI	0.71%
American Megatrends	0.35%

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