Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 0.07%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.07%
6.2.9200.16384 (win8_rtm.120725-1247) 0.13%
6.2.9200.16384 (win8_rtm.120725-1247) 0.07%
6.1.7600.16385 (win7_rtm.090713-1255) 0.20%
6.1.7600.16385 (win7_rtm.090713-1255) 0.33%
6.0.6000.16386 (vista_rtm.061101-2205) 0.07%
6.0.6000.16386 (vista_rtm.061101-2205) 0.07%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 0.07%
15.0.4454.1000 0.91%
15.0.4454.1000 4.70%
15.0.4433.1506 0.07%
15.0.4420.1017 1.57%
15.0.4420.1017 1.37%
15.0.4128.1022 1.17%
15.0.4128.1019 0.07%
15.0.4128.1014 0.59%
15.0.4128.1014 0.20%
14.0.4730.1010 36.46%
14.0.4730.1010 3.39%
14.0.4730.1010 0.07%
14.0.4730.1010 0.07%
12.0.6413.1000 0.20%
12.0.4518.1014 38.36%
12.0.4518.1014 0.07%

PE structurePE file structure

Show functions
Import table
RegEnumValueW, CryptReleaseContext, CryptAcquireContextW, SetFileSecurityW, RegDeleteKeyW, OpenThreadToken, CheckTokenMembership, ConvertStringSecurityDescriptorToSecurityDescriptorW, LookupAccountNameW, AllocateAndInitializeSid, FreeSid, CryptHashData, CryptGetHashParam, CryptCreateHash, CryptDestroyHash, RegisterServiceCtrlHandlerW, RegCloseKey, RegEnumKeyExW, RegCreateKeyExW, RegOpenKeyExW, RegSetValueExW, SetThreadToken, RegQueryValueExW, RegNotifyChangeKeyValue, SetServiceStatus, StartServiceCtrlDispatcherW, DuplicateToken, RegDeleteValueW
FormatMessageA, GetComputerNameW, GetModuleHandleA, GetStartupInfoA, TerminateProcess, GetCurrentProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, QueryPerformanceCounter, GetCurrentThreadId, GetCurrentProcessId, HeapAlloc, GetProcessHeap, HeapReAlloc, HeapFree, HeapSize, RaiseException, LoadLibraryA, MoveFileExW, GetLastError, GetModuleFileNameW, CloseHandle, SetEvent, InterlockedIncrement, InterlockedDecrement, lstrlenW, GetDriveTypeW, GetLogicalDrives, lstrcmpW, DeleteCriticalSection, LeaveCriticalSection, EnterCriticalSection, Sleep, ExitProcess, InitializeCriticalSection, GetCommandLineW, GetTickCount, ReleaseMutex, ResetEvent, WaitForMultipleObjectsEx, SetErrorMode, CreateEventW, CreateMutexW, CreateProcessW, GetSystemInfo, InterlockedExchange, CreateFileA, ReadFile, SetFilePointer, DosDateTimeToFileTime, MultiByteToWideChar, FreeLibrary, GetProcAddress, LoadLibraryW, WideCharToMultiByte, CreateFileW, ReleaseSemaphore, WaitForSingleObject, WaitForMultipleObjects, CreateThread, CreateSemaphoreW, VirtualFree, VirtualAlloc, SetFilePointerEx, GetSystemTimeAsFileTime, SystemTimeToFileTime, GetSystemTime, SetFileTime, SetEndOfFile, WriteFile, GlobalFree, GlobalAlloc, GetFileAttributesExW, GetFileSizeEx, FindClose, FindFirstFileW, GetFileAttributesW, CopyFileW, CreateHardLinkW, SetFileAttributesW, DeleteFileW, GetTempPathA, GetTempPathW, GetFileTime, FindNextFileW, LocalFree, GetCurrentThread, CreateDirectoryW, RemoveDirectoryW, lstrlenA, SystemTimeToTzSpecificLocalTime, GetTimeZoneInformation, LocalAlloc
RpcImpersonateClient, RpcRevertToSelf, RpcServerUnregisterIf, RpcServerUseProtseqEpW, RpcServerRegisterIfEx, NdrServerCall2


Office Source Engine by Microsoft Corporation (Signed)

Remove ose.exe
Version:   12.0.4518.1014
MD5:   5a432a042dae460abe7199b758e8606c
SHA1:   821b965267ee15c6c59178777ae7a8dcfc80f4ba
SHA256:   6e5d1f477d290905be27cebf9572bac6b05ffef2fad901d3c8e11f665f8b9a71


ose.exe runs as a service under the name Office Source Engine (ose) within the local user context. It is installed with a couple of know programs including NVIDIA PhysX published by NVIDIA Corporation, µTorrent from BitTorrent Inc. and µTorrent by BitTorrent Inc.. The file is digitally signed by Microsoft Corporation.


File name:ose.exe
Publisher:Microsoft Corporation
Product name:Office Source Engine
Typical file path:C:\Program Files\common files\microsoft shared\source engine\ose.exe
File version:12.0.4518.1014
Size:141.78 KB (145,184 bytes)
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Effective date:Monday, December 7, 2009
Expiration date:Monday, March 7, 2011
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++
More details


The following programs will install this file
Analog Devices
6% remove
SoundMAX is a suite of audio processing algorithms tailored to run on ADI components. These processing algorithms are licensed to equipment manufacturers, who integrate them with ADI’s signal processing solutions to deliver an optimal listening solution to their customers. The SoundMAX logo gives you confidence that your entertainment experience will be the best it can be. Analog Devices has long been known for world-class audio signal ...
BitTorrent Inc.
12% remove
µTorrent is a is a free, ad-supported, lighter-weight BitTorrent client designed to consume less resources then the full BitTorrent version. Some uTorrent installs include potentially unwanted applications in the form of the Conduit Engine, which installs a toolbar, and makes homepage and default search engine changes to a user's web browser.
3% remove
Gothic III is a PC video game published by JoWooD Entertainment, now Nordic Games.
NVIDIA Corporation
3% remove
PhysX is a proprietary realtime physics engine middleware SDK. Video games supporting hardware acceleration by PhysX can be accelerated by either a PhysX PPU or a CUDA-enabled GeForce GPU offloading physics calculations from the CPU, allowing it to perform other tasks instead. This typically results in a smoother gaming experience and additional visual effects.


Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'ose' (Office Source Engine)
  • 'ose64' (Office 64 Source Engine)
  • ose64
  • 'ose'

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 34.00%
Windows 7 Ultimate 19.00%
Microsoft Windows XP 7.50%
Windows 7 Professional 6.50%
Windows 8.1 6.00%
Windows 8.1 Pro 5.50%
Windows 8 Pro 5.00%
Windows Vista Home Premium 3.00%
Windows 8.1 Single Language 2.50%
Windows 7 Home Basic 2.00%
Windows 8 1.50%
Windows 8 Single Language 1.50%
Windows 8 Enterprise N 1.00%
Windows 8.1 Pro with Media Center 1.00%
Windows 7 Starter 1.00%
Windows 8.1 N 0.50%
Windows 8.1 Enterprise Evaluation 0.50%
Windows 8.1 Enterprise 0.50%
Windows 8 Enterprise 0.50%
Windows Vista Home Basic 0.50%
Windows 8 Pro with Media Center 0.50%
21 other Windows OS version

Distribution by countryDistribution by country

United States installs about 30.15% of Office Source Engine.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 24.72%
Hewlett-Packard 15.36%
ASUS 12.73%
Lenovo 11.24%
Toshiba 10.49%
Acer 9.74%
Intel 4.49%
Compaq 3.00%
Samsung 1.87%
Sony 1.50%
American Megatrends 0.75%
NEC 0.75%
Sahara 0.37%
Alienware 0.37%
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