Windows 10 DLL File Information - usoapi.dll

The following DLL report was generated by automatic DLL script that scanned and loaded all DLL files in the system32 directory of Windows 10, extracted the information from them, and then saved it into HTML reports. If you want to view a report of another DLL, go to the main page of this Web site.

General Information

File Description:	Update Session Orchestrator API
File Version:	10.0.10130.0 (fbl_impressive.150522-2224)
Company:	Microsoft Corporation
Product Name:	Microsoft® Windows® Operating System
DLL popularity	Very Low - There is no any other DLL in system32 directory that is statically linked to this file.
File Size:	66 KB
Total Number of Exported Functions:	2
Total Number of Exported Functions With Names:	2

Section Headers

Name	Virtual Address	Raw Data Size	% of File	Characteristics	Section Contains...
.text	0x00001000	52,736 Bytes	78.0%	Read, Execute	Code
.wpp_sf	0x0000e000	512 Bytes	0.8%	Read, Execute	Code
.data	0x0000f000	2,048 Bytes	3.0%	Write, Read	Initialized Data
.idata	0x00010000	6,144 Bytes	9.1%	Read	Initialized Data
.rsrc	0x00012000	1,536 Bytes	2.3%	Read	Initialized Data
.reloc	0x00013000	3,584 Bytes	5.3%	Read, Discardable	Initialized Data

Static Linking

usoapi.dll is statically linked to the following files:

msvcrt.dll
OLEAUT32.dll
api-ms-win-core-com-midlproxystub-l1-1-0.dll
RPCRT4.dll
api-ms-win-core-libraryloader-l1-2-0.dll
api-ms-win-core-com-l1-1-1.dll
api-ms-win-core-string-l2-1-0.dll
api-ms-win-core-errorhandling-l1-1-1.dll
api-ms-win-core-registry-l1-1-0.dll
api-ms-win-core-synch-l1-2-0.dll
api-ms-win-core-string-l1-1-0.dll
api-ms-win-core-sysinfo-l1-2-1.dll
api-ms-win-core-processthreads-l1-1-2.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-debug-l1-1-1.dll
api-ms-win-core-string-obsolete-l1-1-0.dll
api-ms-win-core-heap-l1-2-0.dll
api-ms-win-service-management-l2-1-0.dll
api-ms-win-service-management-l1-1-0.dll
api-ms-win-core-timezone-l1-1-0.dll
api-ms-win-service-winsvc-l1-2-0.dll
api-ms-win-security-base-l1-2-0.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-security-sddl-l1-1-0.dll
api-ms-win-core-heap-l2-1-0.dll
api-ms-win-eventing-classicprovider-l1-1-0.dll
api-ms-win-core-file-l1-2-1.dll
api-ms-win-core-file-l2-1-1.dll
api-ms-win-core-shlwapi-legacy-l1-1-0.dll
api-ms-win-core-shlwapi-obsolete-l1-2-0.dll

This means that when usoapi.dll is loaded, the above files are automatically loaded too. If one of these files is corrupted or missing, usoapi.dll won't be loaded.

General Resources Information

Resource Type	Number of Items	Total Size	% of File
Icons	0	0 Bytes	0.0%
Animated Icons	0	0 Bytes	0.0%
Cursors	0	0 Bytes	0.0%
Animated Cursors	0	0 Bytes	0.0%
Bitmaps	0	0 Bytes	0.0%
AVI Files	0	0 Bytes	0.0%
Dialog-Boxes	0	0 Bytes	0.0%
HTML Related Files	0	0 Bytes	0.0%
Menus	0	0 Bytes	0.0%
Strings	0	0 Bytes	0.0%
Type Libraries	0	0 Bytes	0.0%
Manifest	0	0 Bytes	0.0%
All Others	1	976 Bytes	1.4%
Total	1	976 Bytes	1.4%

Icons in this file

No icons found in this file

Cursors in this file

No cursors found in this file

Dialog-boxes list (up to 1000 dialogs)

No dialog resources in this file.

String resources in this dll (up to 1000 strings)

No string resources in this file.

COM Classes/Interfaces

There is no type library in this file with COM classes/interfaces information

Exported Functions List

The following functions are exported by this dll:

DllCanUnloadNow

DllGetClassObject

Imported Functions List

The following functions are imported by this dll:

• msvcrt.dll:
  

  _CxxThrowException

  _XcptFilter

  __CxxFrameHandler

  __dllonexit

  _amsg_exit

  _callnewh

  _errno

  _except_handler4_common

  _initterm

  _lock

  _onexit

  _purecall

  _unlock

  free

  malloc

  memcmp

  memcpy

  memcpy_s

  memmove

  memset

  public: __thiscall exception::exception(char const * const &)

  public: __thiscall exception::exception(char const * const &,int)

  public: __thiscall exception::exception(class exception const &)

  public: virtual __thiscall exception::~exception(void)

  public: virtual __thiscall type_info::~type_info(void)

  public: virtual char const * __thiscall exception::what(void)const

  qsort

  realloc

  void __cdecl operator delete(void *)

  void __cdecl operator delete[](void *)

  void __cdecl terminate(void)

  wcsncpy_s

  wcsrchr

• OLEAUT32.dll:
  

  BSTR_UserFree	BSTR_UserMarshal	BSTR_UserSize	BSTR_UserUnmarshal
  LoadRegTypeLib	LoadTypeLib	SysFreeString	SysStringLen
  SystemTimeToVariantTime	VARIANT_UserFree	VARIANT_UserMarshal	VARIANT_UserSize
  VARIANT_UserUnmarshal	VarUI4FromStr	VariantClear	VariantInit

• api-ms-win-core-com-midlproxystub-l1-1-0.dll:
  

  combase!ObjectStublessClient10	combase!ObjectStublessClient11	combase!ObjectStublessClient12
  combase!ObjectStublessClient13	combase!ObjectStublessClient14	combase!ObjectStublessClient15
  combase!ObjectStublessClient16	combase!ObjectStublessClient17	combase!ObjectStublessClient18
  combase!ObjectStublessClient19	combase!ObjectStublessClient20	combase!ObjectStublessClient3
  combase!ObjectStublessClient4	combase!ObjectStublessClient5	combase!ObjectStublessClient6
  combase!ObjectStublessClient7	combase!ObjectStublessClient8	combase!ObjectStublessClient9

• RPCRT4.dll:
  

  CStdStubBuffer_AddRef	CStdStubBuffer_Connect
  CStdStubBuffer_CountRefs	CStdStubBuffer_DebugServerQueryInterface
  CStdStubBuffer_DebugServerRelease	CStdStubBuffer_Disconnect
  CStdStubBuffer_Invoke	CStdStubBuffer_IsIIDSupported
  CStdStubBuffer_QueryInterface	IUnknown_AddRef_Proxy
  IUnknown_QueryInterface_Proxy	IUnknown_Release_Proxy
  NdrCStdStubBuffer_Release	NdrDllCanUnloadNow
  NdrDllGetClassObject	NdrOleAllocate
  NdrOleFree

• api-ms-win-core-libraryloader-l1-2-0.dll:
  

  KernelBase!FindResourceExW	KernelBase!FreeLibrary	KernelBase!GetModuleFileNameW	KernelBase!GetModuleHandleW
  KernelBase!GetProcAddress	KernelBase!LoadLibraryExW	KernelBase!LoadResource	KernelBase!SizeofResource

• api-ms-win-core-com-l1-1-1.dll:
  

  combase!CoCreateFreeThreadedMarshaler	combase!CoCreateInstance	combase!CoTaskMemAlloc
  combase!CoTaskMemFree	combase!CoTaskMemRealloc

• api-ms-win-core-string-l2-1-0.dll:
  

  KernelBase!CharNextW

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

  KernelBase!GetLastError	KernelBase!RaiseException	KernelBase!SetUnhandledExceptionFilter
  KernelBase!UnhandledExceptionFilter	ntdll!RtlRestoreLastWin32Error

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

  KernelBase!RegCloseKey	KernelBase!RegCreateKeyExW	KernelBase!RegDeleteValueW	KernelBase!RegEnumKeyExW
  KernelBase!RegOpenKeyExW	KernelBase!RegQueryInfoKeyW	KernelBase!RegQueryValueExW	KernelBase!RegSetValueExW

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

  KernelBase!Sleep	ntdll!RtlDeleteCriticalSection	ntdll!RtlEnterCriticalSection
  ntdll!RtlInitializeCriticalSection	ntdll!RtlLeaveCriticalSection

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

  KernelBase!MultiByteToWideChar

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

  KernelBase!GetNativeSystemInfo

  KernelBase!GetSystemTimeAsFileTime

  KernelBase!GetTickCount

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

  kernel32!GetCurrentProcess

  kernel32!GetCurrentProcessId

  kernel32!GetCurrentThreadId

  kernel32!TerminateProcess

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

  ntdll!RtlQueryPerformanceCounter

• api-ms-win-core-debug-l1-1-1.dll:
  

  KernelBase!OutputDebugStringA

• api-ms-win-core-string-obsolete-l1-1-0.dll:
  

  kernel32!lstrcmpiW

• api-ms-win-core-heap-l1-2-0.dll:
  

  KernelBase!GetProcessHeap

  ntdll!RtlAllocateHeap

  ntdll!RtlFreeHeap

  ntdll!RtlReAllocateHeap

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

  sechost!ChangeServiceConfig2W

  sechost!ChangeServiceConfigW

  sechost!QueryServiceConfig2W

  sechost!QueryServiceConfigW

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

  sechost!CloseServiceHandle

  sechost!OpenSCManagerW

  sechost!OpenServiceW

  sechost!StartServiceW

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

  KernelBase!FileTimeToSystemTime

• api-ms-win-service-winsvc-l1-2-0.dll:
  

  sechost!QueryServiceStatus

• api-ms-win-security-base-l1-2-0.dll:
  

  KernelBase!AllocateAndInitializeSid

  KernelBase!CheckTokenMembership

  KernelBase!FreeSid

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

  KernelBase!CloseHandle

• api-ms-win-security-sddl-l1-1-0.dll:
  

  sechost!ConvertStringSidToSidW

• api-ms-win-core-heap-l2-1-0.dll:
  

  KernelBase!LocalFree

• api-ms-win-eventing-classicprovider-l1-1-0.dll:
  

  ntdll!EtwTraceMessageVa

• api-ms-win-core-file-l1-2-1.dll:
  

  KernelBase!DeleteFileW	KernelBase!FindClose	KernelBase!FindFirstFileW
  KernelBase!FindNextFileW	KernelBase!GetCompressedFileSizeW	KernelBase!GetDiskFreeSpaceW
  KernelBase!GetFileAttributesExW

• api-ms-win-core-file-l2-1-1.dll:
  

  KernelBase!MoveFileExW

• api-ms-win-core-shlwapi-legacy-l1-1-0.dll:
  

  KernelBase!PathIsRelativeW

  KernelBase!PathIsRootW

  KernelBase!PathIsUNCW

  KernelBase!PathStripToRootW

• api-ms-win-core-shlwapi-obsolete-l1-2-0.dll:
  

  KernelBase!StrChrW

  KernelBase!StrRChrW