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:   14.0.4730.1010
MD5:   4965b005492cba7719e82b71e3245495
SHA1:   441b048b302f14b6266707de938841a6c27504b5
SHA256:   52ad72c05facc1e0e416a1fa25f34fdd3cb274fab973beaae911a2faca42b650


ose.exe runs as a service under the name Office Source Engine (ose) with extensive SYSTEM privileges (full administrator access). It is installed with a couple of know programs including Lenovo Patch Utility 64 bit published by Lenovo and QuickTime 7 published by Apple 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:14.0.4730.1010
Size:170.35 KB (174,440 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
Apple Inc.
10% remove
QuickTime Player 7 supports older media formats, such as QTVR, interactive QuickTime movies, and MIDI files on Snow Leopard and OS X Lion. It also accepts QuickTime 7 Pro registration codes, which turn on QuickTime Pro functions. QuickTime Player 7 will be installed in the Utilities folder in the Applications folder.
12% remove
This program provides the utilities (sub packages) related for the special keys and buttons on your computer. The special keys and buttons are designed on the accessibility and usability. The utilities enable the full functionality for the special keys and buttons. This program provides a function to change various settings of the ThinkPad's internal display. This program is applicable only to several featurized ThinkPad products. The s...


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

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Total CPU:0.00026554%
Kernel CPU:0.00013277%
User CPU:0.00013277%
Kernel CPU time:31 ms/min
Private memory:1.84 MB
21.59 MB
Private (maximum):6.29 MB
Private (minimum):6.02 MB
Non-paged memory:1.84 MB
21.59 MB
Virtual memory:34.23 MB
140.96 MB
Virtual memory (peak):41.85 MB
169.69 MB
Working set:6.06 MB
18.61 MB
Working set (peak):6.63 MB
37.95 MB
Resource allocations

BehaviorsProcess properties

Integrety level:System
Command line:"C:\Program Files\common files\microsoft shared\source engine\ose.exe"
Windows Service
Service name:ose
Display name:Office Source Engine
Description:“Saves installation files used for updates and repairs and is required for the downloading of Setup updates and Watson error reports.”
Parent process:services.exe (by Microsoft)

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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