Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

15.0.4454.1000 0.92%
15.0.4454.1000 4.75%
15.0.4433.1506 0.07%
15.0.4420.1017 1.58%
15.0.4420.1017 1.38%
15.0.4128.1022 1.19%
15.0.4128.1019 0.07%
15.0.4128.1014 0.59%
15.0.4128.1014 0.20%
14.0.4730.1010 36.85%
14.0.4730.1010 3.43%
14.0.4730.1010 0.07%
14.0.4730.1010 0.07%
12.0.6413.1000 0.20%
12.0.4518.1014 38.76%
12.0.4518.1014 0.07%
11.0.5525 9.82%

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:   15.0.4454.1000
MD5:   30b5f9fb0c35ae6b4a0851d24ce2ee8b
SHA1:   6b163e838f91d3d1990de5de82efff1edce98506
SHA256:   0340e77e8ec2adc21b8ddd9c9cc95b3f4bcafd54618a333c72d7d9587d593b83


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 Microsoft Office 365 Home Premium - en-us published by Microsoft Corporation, Microsoft Office 365 Home Premium - de-de from Microsoft Corporation and Microsoft Office 365 Home Premium - de-de by Microsoft Corporation. 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:15.0.4454.1000
Size:147.07 KB (150,600 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
Microsoft Corporation
10% remove
A subscription to Microsoft Office 365 Home Premium lets you install a full copy of Office 2013 on up to five devices and also lets any Windows 7 or 8 machine temporarily download Word, Excel, or the other Office apps for use on other PCs.
Microsoft Corporation
6% remove
A subscription to Microsoft Office 365 Home Premium lets you install a full copy of Office 2013 on up to five devices and also lets any Windows 7 or 8 machine temporarily download Word, Excel, or the other Office apps for use on other PCs.


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%
Should I remove It? Clean your PC of unwanted adware, toolbars and bloatware.

Download it for FREE